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llvm-project/llvm/test/Transforms/InstCombine/cast.ll
Usman Nadeem b93173185d
[InstCombine] Narrow trunc(lshr) in more cases (#139645) 
We can narrow `trunc(lshr(i32)) to i8` to `trunc(lshr(i16)) to i8` even
when the bits that we are shifting in are not zero, in the cases where
the MSBs of the shifted value don't actually matter and actually end up
being truncated away.

This kind of narrowing does not remove the trunc but can help the
vectorizer generate better code in a smaller type.
Motivation: libyuv, functions like ARGBToUV444Row_C().

Proof: https://alive2.llvm.org/ce/z/9Ao2aJ
2025-05-13 13:42:42 -07:00

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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; Tests to make sure elimination of casts is working correctly
; RUN: opt < %s -passes=instcombine -S -data-layout="E-p:64:64:64-p1:32:32:32-p2:64:64:64-p3:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128-n8:16:32:64" | FileCheck %s --check-prefixes=ALL,BE
; RUN: opt < %s -passes=instcombine -S -data-layout="e-p:64:64:64-p1:32:32:32-p2:64:64:64-p3:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128-n8:16:32:64" | FileCheck %s --check-prefixes=ALL,LE
; RUN: opt < %s -passes=instcombine -S -data-layout="E-p:64:64:64-p1:32:32:32-p2:64:64:64-p3:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128-n8:16:32:64" -use-constant-fp-for-fixed-length-splat -use-constant-int-for-fixed-length-splat | FileCheck %s --check-prefixes=ALL,BE
; RUN: opt < %s -passes=instcombine -S -data-layout="e-p:64:64:64-p1:32:32:32-p2:64:64:64-p3:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128-n8:16:32:64" -use-constant-fp-for-fixed-length-splat -use-constant-int-for-fixed-length-splat | FileCheck %s --check-prefixes=ALL,LE
declare void @use_i8(i8)
declare void @use_i32(i32)
declare void @use_v2i32(<2 x i32>)
@inbuf = external global [32832 x i8]
define i32 @test1(i32 %A) {
; ALL-LABEL: @test1(
; ALL-NEXT: ret i32 [[A:%.*]]
;
%c1 = bitcast i32 %A to i32
%c2 = bitcast i32 %c1 to i32
ret i32 %c2
}
define i64 @test2(i8 %A) {
; ALL-LABEL: @test2(
; ALL-NEXT: [[RET:%.*]] = zext i8 [[A:%.*]] to i64
; ALL-NEXT: ret i64 [[RET]]
;
%c1 = zext i8 %A to i16
%c2 = zext i16 %c1 to i32
%Ret = zext i32 %c2 to i64
ret i64 %Ret
}
define i64 @test3(i64 %A) {
; ALL-LABEL: @test3(
; ALL-NEXT: [[C2:%.*]] = and i64 [[A:%.*]], 255
; ALL-NEXT: ret i64 [[C2]]
;
%c1 = trunc i64 %A to i8
%c2 = zext i8 %c1 to i64
ret i64 %c2
}
define i32 @test4(i32 %A, i32 %B) {
; ALL-LABEL: @test4(
; ALL-NEXT: [[COND:%.*]] = icmp slt i32 [[A:%.*]], [[B:%.*]]
; ALL-NEXT: [[RESULT:%.*]] = zext i1 [[COND]] to i32
; ALL-NEXT: ret i32 [[RESULT]]
;
%COND = icmp slt i32 %A, %B
%c = zext i1 %COND to i8
%result = zext i8 %c to i32
ret i32 %result
}
define i32 @test5(i1 %B) {
; ALL-LABEL: @test5(
; ALL-NEXT: [[RESULT:%.*]] = zext i1 [[B:%.*]] to i32
; ALL-NEXT: ret i32 [[RESULT]]
;
%c = zext i1 %B to i8
%result = zext i8 %c to i32
ret i32 %result
}
define i32 @test6(i64 %A) {
; ALL-LABEL: @test6(
; ALL-NEXT: [[C1:%.*]] = trunc i64 [[A:%.*]] to i32
; ALL-NEXT: ret i32 [[C1]]
;
%c1 = trunc i64 %A to i32
%res = bitcast i32 %c1 to i32
ret i32 %res
}
define i64 @test7(i1 %A) {
; ALL-LABEL: @test7(
; ALL-NEXT: [[RES:%.*]] = zext i1 [[A:%.*]] to i64
; ALL-NEXT: ret i64 [[RES]]
;
%c1 = zext i1 %A to i32
%res = sext i32 %c1 to i64
ret i64 %res
}
define i64 @test8(i8 %A) {
; ALL-LABEL: @test8(
; ALL-NEXT: [[C1:%.*]] = sext i8 [[A:%.*]] to i64
; ALL-NEXT: ret i64 [[C1]]
;
%c1 = sext i8 %A to i64
%res = bitcast i64 %c1 to i64
ret i64 %res
}
define i16 @test9(i16 %A) {
; ALL-LABEL: @test9(
; ALL-NEXT: ret i16 [[A:%.*]]
;
%c1 = sext i16 %A to i32
%c2 = trunc i32 %c1 to i16
ret i16 %c2
}
define i16 @test10(i16 %A) {
; ALL-LABEL: @test10(
; ALL-NEXT: ret i16 [[A:%.*]]
;
%c1 = sext i16 %A to i32
%c2 = trunc i32 %c1 to i16
ret i16 %c2
}
declare void @varargs(i32, ...)
define void @test11(ptr %P) {
; ALL-LABEL: @test11(
; ALL-NEXT: call void (i32, ...) @varargs(i32 5, ptr [[P:%.*]])
; ALL-NEXT: ret void
;
call void (i32, ...) @varargs( i32 5, ptr %P )
ret void
}
declare i32 @__gxx_personality_v0(...)
define void @test_invoke_vararg_cast(ptr %a, ptr %b) personality ptr @__gxx_personality_v0 {
; ALL-LABEL: @test_invoke_vararg_cast(
; ALL-NEXT: entry:
; ALL-NEXT: invoke void (i32, ...) @varargs(i32 1, ptr [[B:%.*]], ptr [[A:%.*]])
; ALL-NEXT: to label [[INVOKE_CONT:%.*]] unwind label [[LPAD:%.*]]
; ALL: invoke.cont:
; ALL-NEXT: ret void
; ALL: lpad:
; ALL-NEXT: [[TMP0:%.*]] = landingpad { ptr, i32 }
; ALL-NEXT: cleanup
; ALL-NEXT: ret void
;
entry:
invoke void (i32, ...) @varargs(i32 1, ptr %b, ptr %a)
to label %invoke.cont unwind label %lpad
invoke.cont:
ret void
lpad:
%0 = landingpad { ptr, i32 }
cleanup
ret void
}
define ptr @test13(i64 %A) {
; ALL-LABEL: @test13(
; ALL-NEXT: [[C:%.*]] = getelementptr [0 x i8], ptr @inbuf, i64 0, i64 [[A:%.*]]
; ALL-NEXT: ret ptr [[C]]
;
%c = getelementptr [0 x i8], ptr @inbuf, i64 0, i64 %A
ret ptr %c
}
define i1 @test14(i8 %A) {
; ALL-LABEL: @test14(
; ALL-NEXT: [[X:%.*]] = icmp sgt i8 [[A:%.*]], -1
; ALL-NEXT: ret i1 [[X]]
;
%c = bitcast i8 %A to i8
%X = icmp ult i8 %c, -128
ret i1 %X
}
; This just won't occur when there's no difference between ubyte and sbyte
;bool %test15(ubyte %A) {
; %c = cast ubyte %A to sbyte
; %X = setlt sbyte %c, 0 ; setgt %A, 127
; ret bool %X
;}
define i1 @test16(ptr %P) {
; ALL-LABEL: @test16(
; ALL-NEXT: [[C:%.*]] = icmp ne ptr [[P:%.*]], null
; ALL-NEXT: ret i1 [[C]]
;
%c = icmp ne ptr %P, null
ret i1 %c
}
define i16 @test17(i1 %x) {
; ALL-LABEL: @test17(
; ALL-NEXT: [[T86:%.*]] = zext i1 [[X:%.*]] to i16
; ALL-NEXT: ret i16 [[T86]]
;
%c = zext i1 %x to i32
%t86 = trunc i32 %c to i16
ret i16 %t86
}
define i16 @test18(i8 %x) {
; ALL-LABEL: @test18(
; ALL-NEXT: [[T86:%.*]] = sext i8 [[X:%.*]] to i16
; ALL-NEXT: ret i16 [[T86]]
;
%c = sext i8 %x to i32
%t86 = trunc i32 %c to i16
ret i16 %t86
}
define i1 @test19(i32 %X) {
; ALL-LABEL: @test19(
; ALL-NEXT: [[Z:%.*]] = icmp slt i32 [[X:%.*]], 12345
; ALL-NEXT: ret i1 [[Z]]
;
%c = sext i32 %X to i64
%Z = icmp slt i64 %c, 12345
ret i1 %Z
}
define <2 x i1> @test19vec(<2 x i32> %X) {
; ALL-LABEL: @test19vec(
; ALL-NEXT: [[Z:%.*]] = icmp slt <2 x i32> [[X:%.*]], <i32 12345, i32 2147483647>
; ALL-NEXT: ret <2 x i1> [[Z]]
;
%c = sext <2 x i32> %X to <2 x i64>
%Z = icmp slt <2 x i64> %c, <i64 12345, i64 2147483647>
ret <2 x i1> %Z
}
define <3 x i1> @test19vec2(<3 x i1> %X) {
; ALL-LABEL: @test19vec2(
; ALL-NEXT: [[CMPEQ:%.*]] = xor <3 x i1> [[X:%.*]], splat (i1 true)
; ALL-NEXT: ret <3 x i1> [[CMPEQ]]
;
%sext = sext <3 x i1> %X to <3 x i32>
%cmpeq = icmp eq <3 x i32> %sext, zeroinitializer
ret <3 x i1> %cmpeq
}
define i1 @test20(i1 %B) {
; ALL-LABEL: @test20(
; ALL-NEXT: ret i1 false
;
%c = zext i1 %B to i32
%D = icmp slt i32 %c, -1
ret i1 %D
}
define i32 @test21(i32 %X) {
; ALL-LABEL: @test21(
; ALL-NEXT: [[SEXT:%.*]] = and i32 [[X:%.*]], 255
; ALL-NEXT: ret i32 [[SEXT]]
;
%c1 = trunc i32 %X to i8
%c2 = sext i8 %c1 to i32
%RV = and i32 %c2, 255
ret i32 %RV
}
define i32 @test22(i32 %X) {
; ALL-LABEL: @test22(
; ALL-NEXT: [[SEXT:%.*]] = shl i32 [[X:%.*]], 24
; ALL-NEXT: ret i32 [[SEXT]]
;
%c1 = trunc i32 %X to i8
%c2 = sext i8 %c1 to i32
%RV = shl i32 %c2, 24
ret i32 %RV
}
define i32 @test23(i32 %X) {
; ALL-LABEL: @test23(
; ALL-NEXT: [[C2:%.*]] = and i32 [[X:%.*]], 65535
; ALL-NEXT: ret i32 [[C2]]
;
%c1 = trunc i32 %X to i16
%c2 = zext i16 %c1 to i32
ret i32 %c2
}
define i1 @test24(i1 %C) {
; ALL-LABEL: @test24(
; ALL-NEXT: ret i1 true
;
%X = select i1 %C, i32 14, i32 1234
%c = icmp ne i32 %X, 0
ret i1 %c
}
define i32 @test26(float %F) {
; ALL-LABEL: @test26(
; ALL-NEXT: [[D:%.*]] = fptosi float [[F:%.*]] to i32
; ALL-NEXT: ret i32 [[D]]
;
%c = fpext float %F to double
%D = fptosi double %c to i32
ret i32 %D
}
define ptr @test27(ptr %A) {
; ALL-LABEL: @test27(
; ALL-NEXT: ret ptr [[A:%.*]]
;
ret ptr %A
}
define ptr @test28(ptr %A) {
; ALL-LABEL: @test28(
; ALL-NEXT: ret ptr [[A:%.*]]
;
ret ptr %A
}
define i32 @test29(i32 %c1, i32 %c2) {
; ALL-LABEL: @test29(
; ALL-NEXT: [[T21:%.*]] = or i32 [[C2:%.*]], [[C1:%.*]]
; ALL-NEXT: [[T10:%.*]] = and i32 [[T21]], 255
; ALL-NEXT: ret i32 [[T10]]
;
%t1 = trunc i32 %c1 to i8
%tmask = trunc i32 %c2 to i8
%t2 = or i8 %tmask, %t1
%t10 = zext i8 %t2 to i32
ret i32 %t10
}
define i32 @test30(i32 %c1) {
; ALL-LABEL: @test30(
; ALL-NEXT: [[C3:%.*]] = and i32 [[C1:%.*]], 255
; ALL-NEXT: [[C4:%.*]] = xor i32 [[C3]], 1
; ALL-NEXT: ret i32 [[C4]]
;
%c2 = trunc i32 %c1 to i8
%c3 = xor i8 %c2, 1
%c4 = zext i8 %c3 to i32
ret i32 %c4
}
define i1 @test31(i64 %A) {
; ALL-LABEL: @test31(
; ALL-NEXT: [[C1:%.*]] = and i64 [[A:%.*]], 42
; ALL-NEXT: [[D:%.*]] = icmp eq i64 [[C1]], 10
; ALL-NEXT: ret i1 [[D]]
;
%B = trunc i64 %A to i32
%C = and i32 %B, 42
%D = icmp eq i32 %C, 10
ret i1 %D
}
; FIXME: Vectors should fold too...or not?
; Does this depend on the whether the source/dest types of the trunc are legal in the data layout?
define <2 x i1> @test31vec(<2 x i64> %A) {
; ALL-LABEL: @test31vec(
; ALL-NEXT: [[B:%.*]] = trunc <2 x i64> [[A:%.*]] to <2 x i32>
; ALL-NEXT: [[C:%.*]] = and <2 x i32> [[B]], splat (i32 42)
; ALL-NEXT: [[D:%.*]] = icmp eq <2 x i32> [[C]], splat (i32 10)
; ALL-NEXT: ret <2 x i1> [[D]]
;
%B = trunc <2 x i64> %A to <2 x i32>
%C = and <2 x i32> %B, <i32 42, i32 42>
%D = icmp eq <2 x i32> %C, <i32 10, i32 10>
ret <2 x i1> %D
}
; Verify that the 'and' was narrowed, the zext was eliminated, and the compare was narrowed
; even for vectors. Earlier folds should ensure that the icmp(and(zext)) pattern never occurs.
define <2 x i1> @test32vec(<2 x i8> %A) {
; ALL-LABEL: @test32vec(
; ALL-NEXT: [[TMP1:%.*]] = and <2 x i8> [[A:%.*]], splat (i8 42)
; ALL-NEXT: [[D:%.*]] = icmp eq <2 x i8> [[TMP1]], splat (i8 10)
; ALL-NEXT: ret <2 x i1> [[D]]
;
%B = zext <2 x i8> %A to <2 x i16>
%C = and <2 x i16> %B, <i16 42, i16 42>
%D = icmp eq <2 x i16> %C, <i16 10, i16 10>
ret <2 x i1> %D
}
define i32 @test33(i32 %c1) {
; ALL-LABEL: @test33(
; ALL-NEXT: ret i32 [[C1:%.*]]
;
%x = bitcast i32 %c1 to float
%y = bitcast float %x to i32
ret i32 %y
}
define i16 @test34(i16 %a) {
; ALL-LABEL: @test34(
; ALL-NEXT: [[TMP1:%.*]] = lshr i16 [[A:%.*]], 8
; ALL-NEXT: ret i16 [[TMP1]]
;
%c1 = zext i16 %a to i32
%t21 = lshr i32 %c1, 8
%c2 = trunc i32 %t21 to i16
ret i16 %c2
}
define i16 @test35(i16 %a) {
; ALL-LABEL: @test35(
; ALL-NEXT: [[T2:%.*]] = lshr i16 [[A:%.*]], 8
; ALL-NEXT: ret i16 [[T2]]
;
%c1 = bitcast i16 %a to i16
%t2 = lshr i16 %c1, 8
%c2 = bitcast i16 %t2 to i16
ret i16 %c2
}
; rdar://6480391
define i1 @test36(i32 %a) {
; ALL-LABEL: @test36(
; ALL-NEXT: [[D:%.*]] = icmp sgt i32 [[A:%.*]], -1
; ALL-NEXT: ret i1 [[D]]
;
%b = lshr i32 %a, 31
%c = trunc i32 %b to i8
%d = icmp eq i8 %c, 0
ret i1 %d
}
define <2 x i1> @test36vec(<2 x i32> %a) {
; ALL-LABEL: @test36vec(
; ALL-NEXT: [[D:%.*]] = icmp sgt <2 x i32> [[A:%.*]], splat (i32 -1)
; ALL-NEXT: ret <2 x i1> [[D]]
;
%b = lshr <2 x i32> %a, <i32 31, i32 31>
%c = trunc <2 x i32> %b to <2 x i8>
%d = icmp eq <2 x i8> %c, zeroinitializer
ret <2 x i1> %d
}
define i1 @test37(i32 %a) {
; ALL-LABEL: @test37(
; ALL-NEXT: ret i1 false
;
%b = lshr i32 %a, 31
%c = or i32 %b, 512
%d = trunc i32 %c to i8
%e = icmp eq i8 %d, 11
ret i1 %e
}
define i64 @test38(i32 %a) {
; ALL-LABEL: @test38(
; ALL-NEXT: [[TMP1:%.*]] = icmp ne i32 [[A:%.*]], -2
; ALL-NEXT: [[TMP2:%.*]] = zext i1 [[TMP1]] to i64
; ALL-NEXT: ret i64 [[TMP2]]
;
%1 = icmp eq i32 %a, -2
%2 = zext i1 %1 to i8
%3 = xor i8 %2, 1
%4 = zext i8 %3 to i64
ret i64 %4
}
define i16 @test39(i16 %a) {
; ALL-LABEL: @test39(
; ALL-NEXT: [[T32:%.*]] = call i16 @llvm.bswap.i16(i16 [[A:%.*]])
; ALL-NEXT: ret i16 [[T32]]
;
%t = zext i16 %a to i32
%t21 = lshr i32 %t, 8
%t5 = shl i32 %t, 8
%t32 = or i32 %t21, %t5
%r = trunc i32 %t32 to i16
ret i16 %r
}
define i16 @test40(i16 %a) {
; ALL-LABEL: @test40(
; ALL-NEXT: [[T21:%.*]] = lshr i16 [[A:%.*]], 9
; ALL-NEXT: [[T5:%.*]] = shl i16 [[A]], 8
; ALL-NEXT: [[T32:%.*]] = or disjoint i16 [[T21]], [[T5]]
; ALL-NEXT: ret i16 [[T32]]
;
%t = zext i16 %a to i32
%t21 = lshr i32 %t, 9
%t5 = shl i32 %t, 8
%t32 = or i32 %t21, %t5
%r = trunc i32 %t32 to i16
ret i16 %r
}
define <2 x i16> @test40vec(<2 x i16> %a) {
; ALL-LABEL: @test40vec(
; ALL-NEXT: [[T21:%.*]] = lshr <2 x i16> [[A:%.*]], splat (i16 9)
; ALL-NEXT: [[T5:%.*]] = shl <2 x i16> [[A]], splat (i16 8)
; ALL-NEXT: [[T32:%.*]] = or disjoint <2 x i16> [[T21]], [[T5]]
; ALL-NEXT: ret <2 x i16> [[T32]]
;
%t = zext <2 x i16> %a to <2 x i32>
%t21 = lshr <2 x i32> %t, <i32 9, i32 9>
%t5 = shl <2 x i32> %t, <i32 8, i32 8>
%t32 = or <2 x i32> %t21, %t5
%r = trunc <2 x i32> %t32 to <2 x i16>
ret <2 x i16> %r
}
define <2 x i16> @test40vec_nonuniform(<2 x i16> %a) {
; ALL-LABEL: @test40vec_nonuniform(
; ALL-NEXT: [[T21:%.*]] = lshr <2 x i16> [[A:%.*]], <i16 9, i16 10>
; ALL-NEXT: [[T5:%.*]] = shl <2 x i16> [[A]], <i16 8, i16 9>
; ALL-NEXT: [[T32:%.*]] = or disjoint <2 x i16> [[T21]], [[T5]]
; ALL-NEXT: ret <2 x i16> [[T32]]
;
%t = zext <2 x i16> %a to <2 x i32>
%t21 = lshr <2 x i32> %t, <i32 9, i32 10>
%t5 = shl <2 x i32> %t, <i32 8, i32 9>
%t32 = or <2 x i32> %t21, %t5
%r = trunc <2 x i32> %t32 to <2 x i16>
ret <2 x i16> %r
}
define <2 x i16> @test40vec_poison(<2 x i16> %a) {
; ALL-LABEL: @test40vec_poison(
; ALL-NEXT: [[T21:%.*]] = lshr <2 x i16> [[A:%.*]], <i16 9, i16 poison>
; ALL-NEXT: [[T5:%.*]] = shl <2 x i16> [[A]], <i16 8, i16 poison>
; ALL-NEXT: [[T32:%.*]] = or disjoint <2 x i16> [[T21]], [[T5]]
; ALL-NEXT: ret <2 x i16> [[T32]]
;
%t = zext <2 x i16> %a to <2 x i32>
%t21 = lshr <2 x i32> %t, <i32 9, i32 poison>
%t5 = shl <2 x i32> %t, <i32 8, i32 poison>
%t32 = or <2 x i32> %t21, %t5
%r = trunc <2 x i32> %t32 to <2 x i16>
ret <2 x i16> %r
}
; PR1263
define ptr @test41(ptr %t1) {
; ALL-LABEL: @test41(
; ALL-NEXT: ret ptr [[T1:%.*]]
;
ret ptr %t1
}
define ptr addrspace(1) @test41_addrspacecast_smaller(ptr %t1) {
; ALL-LABEL: @test41_addrspacecast_smaller(
; ALL-NEXT: [[T64:%.*]] = addrspacecast ptr [[T1:%.*]] to ptr addrspace(1)
; ALL-NEXT: ret ptr addrspace(1) [[T64]]
;
%t64 = addrspacecast ptr %t1 to ptr addrspace(1)
ret ptr addrspace(1) %t64
}
define ptr @test41_addrspacecast_larger(ptr addrspace(1) %t1) {
; ALL-LABEL: @test41_addrspacecast_larger(
; ALL-NEXT: [[T64:%.*]] = addrspacecast ptr addrspace(1) [[T1:%.*]] to ptr
; ALL-NEXT: ret ptr [[T64]]
;
%t64 = addrspacecast ptr addrspace(1) %t1 to ptr
ret ptr %t64
}
define i32 @test42(i32 %X) {
; ALL-LABEL: @test42(
; ALL-NEXT: [[Z:%.*]] = and i32 [[X:%.*]], 255
; ALL-NEXT: ret i32 [[Z]]
;
%Y = trunc i32 %X to i8
%Z = zext i8 %Y to i32
ret i32 %Z
}
; rdar://6598839
define zeroext i64 @test43(i8 zeroext %on_off) {
; ALL-LABEL: @test43(
; ALL-NEXT: [[A:%.*]] = zext i8 [[ON_OFF:%.*]] to i64
; ALL-NEXT: [[B:%.*]] = add nsw i64 [[A]], -1
; ALL-NEXT: ret i64 [[B]]
;
%A = zext i8 %on_off to i32
%B = add i32 %A, -1
%C = sext i32 %B to i64
ret i64 %C ;; Should be (add (zext i8 -> i64), -1)
}
define i64 @test44(i8 %T) {
; ALL-LABEL: @test44(
; ALL-NEXT: [[A:%.*]] = zext i8 [[T:%.*]] to i64
; ALL-NEXT: [[B:%.*]] = or i64 [[A]], 1234
; ALL-NEXT: ret i64 [[B]]
;
%A = zext i8 %T to i16
%B = or i16 %A, 1234
%C = zext i16 %B to i64
ret i64 %C
}
define i64 @test45(i8 %A, i64 %Q) {
; ALL-LABEL: @test45(
; ALL-NEXT: [[B:%.*]] = sext i8 [[A:%.*]] to i64
; ALL-NEXT: [[C:%.*]] = or i64 [[Q:%.*]], [[B]]
; ALL-NEXT: [[E:%.*]] = and i64 [[C]], 4294967295
; ALL-NEXT: ret i64 [[E]]
;
%D = trunc i64 %Q to i32 ;; should be removed
%B = sext i8 %A to i32
%C = or i32 %B, %D
%E = zext i32 %C to i64
ret i64 %E
}
define i64 @test46(i64 %A) {
; ALL-LABEL: @test46(
; ALL-NEXT: [[C:%.*]] = shl i64 [[A:%.*]], 8
; ALL-NEXT: [[D:%.*]] = and i64 [[C]], 10752
; ALL-NEXT: ret i64 [[D]]
;
%B = trunc i64 %A to i32
%C = and i32 %B, 42
%D = shl i32 %C, 8
%E = zext i32 %D to i64
ret i64 %E
}
define <2 x i64> @test46vec(<2 x i64> %A) {
; ALL-LABEL: @test46vec(
; ALL-NEXT: [[B:%.*]] = trunc <2 x i64> [[A:%.*]] to <2 x i32>
; ALL-NEXT: [[C:%.*]] = shl <2 x i32> [[B]], splat (i32 8)
; ALL-NEXT: [[D:%.*]] = and <2 x i32> [[C]], splat (i32 10752)
; ALL-NEXT: [[E:%.*]] = zext nneg <2 x i32> [[D]] to <2 x i64>
; ALL-NEXT: ret <2 x i64> [[E]]
;
%B = trunc <2 x i64> %A to <2 x i32>
%C = and <2 x i32> %B, <i32 42, i32 42>
%D = shl <2 x i32> %C, <i32 8, i32 8>
%E = zext <2 x i32> %D to <2 x i64>
ret <2 x i64> %E
}
define i64 @test47(i8 %A) {
; ALL-LABEL: @test47(
; ALL-NEXT: [[TMP1:%.*]] = or i8 [[A:%.*]], 42
; ALL-NEXT: [[C:%.*]] = sext i8 [[TMP1]] to i64
; ALL-NEXT: [[E:%.*]] = and i64 [[C]], 4294967295
; ALL-NEXT: ret i64 [[E]]
;
%B = sext i8 %A to i32
%C = or i32 %B, 42
%E = zext i32 %C to i64
ret i64 %E
}
define i64 @test48(i8 %A1, i8 %a2) {
; ALL-LABEL: @test48(
; ALL-NEXT: [[Z2:%.*]] = zext i8 [[A1:%.*]] to i32
; ALL-NEXT: [[C:%.*]] = shl nuw nsw i32 [[Z2]], 8
; ALL-NEXT: [[D:%.*]] = or disjoint i32 [[C]], [[Z2]]
; ALL-NEXT: [[E:%.*]] = zext nneg i32 [[D]] to i64
; ALL-NEXT: ret i64 [[E]]
;
%Z1 = zext i8 %a2 to i32
%Z2 = zext i8 %A1 to i32
%C = shl i32 %Z2, 8
%D = or i32 %C, %Z2
%E = zext i32 %D to i64
ret i64 %E
}
define i64 @test49(i64 %A) {
; ALL-LABEL: @test49(
; ALL-NEXT: [[C:%.*]] = shl i64 [[A:%.*]], 32
; ALL-NEXT: [[SEXT:%.*]] = ashr exact i64 [[C]], 32
; ALL-NEXT: [[D:%.*]] = or i64 [[SEXT]], 1
; ALL-NEXT: ret i64 [[D]]
;
%B = trunc i64 %A to i32
%C = or i32 %B, 1
%D = sext i32 %C to i64
ret i64 %D
}
define i64 @test50(i64 %x) {
; ALL-LABEL: @test50(
; ALL-NEXT: [[TMP1:%.*]] = shl i64 [[X:%.*]], 30
; ALL-NEXT: [[SEXT:%.*]] = add i64 [[TMP1]], -4294967296
; ALL-NEXT: [[E:%.*]] = ashr i64 [[SEXT]], 32
; ALL-NEXT: ret i64 [[E]]
;
%a = lshr i64 %x, 2
%B = trunc i64 %a to i32
%D = add i32 %B, -1
%E = sext i32 %D to i64
ret i64 %E
}
define i64 @test51(i64 %A, i1 %cond) {
; ALL-LABEL: @test51(
; ALL-NEXT: [[C:%.*]] = and i64 [[A:%.*]], 4294967294
; ALL-NEXT: [[NOT_COND:%.*]] = xor i1 [[COND:%.*]], true
; ALL-NEXT: [[MASKSEL:%.*]] = zext i1 [[NOT_COND]] to i64
; ALL-NEXT: [[E:%.*]] = or disjoint i64 [[C]], [[MASKSEL]]
; ALL-NEXT: [[SEXT:%.*]] = shl nuw i64 [[E]], 32
; ALL-NEXT: [[F:%.*]] = ashr exact i64 [[SEXT]], 32
; ALL-NEXT: ret i64 [[F]]
;
%B = trunc i64 %A to i32
%C = and i32 %B, -2
%D = or i32 %B, 1
%E = select i1 %cond, i32 %C, i32 %D
%F = sext i32 %E to i64
ret i64 %F
}
define i32 @test52(i64 %A) {
; ALL-LABEL: @test52(
; ALL-NEXT: [[B:%.*]] = trunc i64 [[A:%.*]] to i32
; ALL-NEXT: [[C:%.*]] = and i32 [[B]], 7224
; ALL-NEXT: [[D:%.*]] = or disjoint i32 [[C]], 32962
; ALL-NEXT: ret i32 [[D]]
;
%B = trunc i64 %A to i16
%C = or i16 %B, -32574
%D = and i16 %C, -25350
%E = zext i16 %D to i32
ret i32 %E
}
define i64 @test53(i32 %A) {
; ALL-LABEL: @test53(
; ALL-NEXT: [[TMP1:%.*]] = and i32 [[A:%.*]], 7224
; ALL-NEXT: [[TMP2:%.*]] = or disjoint i32 [[TMP1]], 32962
; ALL-NEXT: [[D:%.*]] = zext nneg i32 [[TMP2]] to i64
; ALL-NEXT: ret i64 [[D]]
;
%B = trunc i32 %A to i16
%C = or i16 %B, -32574
%D = and i16 %C, -25350
%E = zext i16 %D to i64
ret i64 %E
}
define i32 @test54(i64 %A) {
; ALL-LABEL: @test54(
; ALL-NEXT: [[B:%.*]] = trunc i64 [[A:%.*]] to i32
; ALL-NEXT: [[C:%.*]] = and i32 [[B]], 7224
; ALL-NEXT: [[D:%.*]] = or disjoint i32 [[C]], -32574
; ALL-NEXT: ret i32 [[D]]
;
%B = trunc i64 %A to i16
%C = or i16 %B, -32574
%D = and i16 %C, -25350
%E = sext i16 %D to i32
ret i32 %E
}
define i64 @test55(i32 %A) {
; ALL-LABEL: @test55(
; ALL-NEXT: [[TMP1:%.*]] = and i32 [[A:%.*]], 7224
; ALL-NEXT: [[TMP2:%.*]] = or disjoint i32 [[TMP1]], -32574
; ALL-NEXT: [[D:%.*]] = sext i32 [[TMP2]] to i64
; ALL-NEXT: ret i64 [[D]]
;
%B = trunc i32 %A to i16
%C = or i16 %B, -32574
%D = and i16 %C, -25350
%E = sext i16 %D to i64
ret i64 %E
}
define i64 @test56(i16 %A) {
; ALL-LABEL: @test56(
; ALL-NEXT: [[P353:%.*]] = sext i16 [[A:%.*]] to i64
; ALL-NEXT: [[P354:%.*]] = lshr i64 [[P353]], 5
; ALL-NEXT: [[P355:%.*]] = and i64 [[P354]], 134217727
; ALL-NEXT: ret i64 [[P355]]
;
%p353 = sext i16 %A to i32
%p354 = lshr i32 %p353, 5
%p355 = zext i32 %p354 to i64
ret i64 %p355
}
define <2 x i64> @test56vec(<2 x i16> %A) {
; ALL-LABEL: @test56vec(
; ALL-NEXT: [[P353:%.*]] = sext <2 x i16> [[A:%.*]] to <2 x i32>
; ALL-NEXT: [[P354:%.*]] = lshr <2 x i32> [[P353]], splat (i32 5)
; ALL-NEXT: [[P355:%.*]] = zext nneg <2 x i32> [[P354]] to <2 x i64>
; ALL-NEXT: ret <2 x i64> [[P355]]
;
%p353 = sext <2 x i16> %A to <2 x i32>
%p354 = lshr <2 x i32> %p353, <i32 5, i32 5>
%p355 = zext <2 x i32> %p354 to <2 x i64>
ret <2 x i64> %p355
}
define i64 @test57(i64 %A) {
; ALL-LABEL: @test57(
; ALL-NEXT: [[C:%.*]] = lshr i64 [[A:%.*]], 8
; ALL-NEXT: [[E:%.*]] = and i64 [[C]], 16777215
; ALL-NEXT: ret i64 [[E]]
;
%B = trunc i64 %A to i32
%C = lshr i32 %B, 8
%E = zext i32 %C to i64
ret i64 %E
}
define <2 x i64> @test57vec(<2 x i64> %A) {
; ALL-LABEL: @test57vec(
; ALL-NEXT: [[B:%.*]] = trunc <2 x i64> [[A:%.*]] to <2 x i32>
; ALL-NEXT: [[C:%.*]] = lshr <2 x i32> [[B]], splat (i32 8)
; ALL-NEXT: [[E:%.*]] = zext nneg <2 x i32> [[C]] to <2 x i64>
; ALL-NEXT: ret <2 x i64> [[E]]
;
%B = trunc <2 x i64> %A to <2 x i32>
%C = lshr <2 x i32> %B, <i32 8, i32 8>
%E = zext <2 x i32> %C to <2 x i64>
ret <2 x i64> %E
}
define i64 @test58(i64 %A) {
; ALL-LABEL: @test58(
; ALL-NEXT: [[C:%.*]] = lshr i64 [[A:%.*]], 8
; ALL-NEXT: [[D:%.*]] = and i64 [[C]], 16777087
; ALL-NEXT: [[E:%.*]] = or disjoint i64 [[D]], 128
; ALL-NEXT: ret i64 [[E]]
;
%B = trunc i64 %A to i32
%C = lshr i32 %B, 8
%D = or i32 %C, 128
%E = zext i32 %D to i64
ret i64 %E
}
define i64 @test59(i8 %A, i8 %B) {
; ALL-LABEL: @test59(
; ALL-NEXT: [[C:%.*]] = zext i8 [[A:%.*]] to i64
; ALL-NEXT: [[D:%.*]] = shl nuw nsw i64 [[C]], 4
; ALL-NEXT: [[E:%.*]] = and i64 [[D]], 48
; ALL-NEXT: [[TMP1:%.*]] = lshr i8 [[B:%.*]], 4
; ALL-NEXT: [[G:%.*]] = zext nneg i8 [[TMP1]] to i64
; ALL-NEXT: [[H:%.*]] = or disjoint i64 [[E]], [[G]]
; ALL-NEXT: ret i64 [[H]]
;
%C = zext i8 %A to i32
%D = shl i32 %C, 4
%E = and i32 %D, 48
%F = zext i8 %B to i32
%G = lshr i32 %F, 4
%H = or i32 %G, %E
%I = zext i32 %H to i64
ret i64 %I
}
define <3 x i32> @test60(<4 x i32> %call4) {
; BE-LABEL: @test60(
; BE-NEXT: [[P10:%.*]] = shufflevector <4 x i32> [[CALL4:%.*]], <4 x i32> poison, <3 x i32> <i32 1, i32 2, i32 3>
; BE-NEXT: ret <3 x i32> [[P10]]
;
; LE-LABEL: @test60(
; LE-NEXT: [[P10:%.*]] = shufflevector <4 x i32> [[CALL4:%.*]], <4 x i32> poison, <3 x i32> <i32 0, i32 1, i32 2>
; LE-NEXT: ret <3 x i32> [[P10]]
;
%p11 = bitcast <4 x i32> %call4 to i128
%p9 = trunc i128 %p11 to i96
%p10 = bitcast i96 %p9 to <3 x i32>
ret <3 x i32> %p10
}
define <4 x i32> @test61(<3 x i32> %call4) {
; BE-LABEL: @test61(
; BE-NEXT: [[P10:%.*]] = shufflevector <3 x i32> [[CALL4:%.*]], <3 x i32> <i32 0, i32 poison, i32 poison>, <4 x i32> <i32 3, i32 0, i32 1, i32 2>
; BE-NEXT: ret <4 x i32> [[P10]]
;
; LE-LABEL: @test61(
; LE-NEXT: [[P10:%.*]] = shufflevector <3 x i32> [[CALL4:%.*]], <3 x i32> <i32 0, i32 poison, i32 poison>, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
; LE-NEXT: ret <4 x i32> [[P10]]
;
%p11 = bitcast <3 x i32> %call4 to i96
%p9 = zext i96 %p11 to i128
%p10 = bitcast i128 %p9 to <4 x i32>
ret <4 x i32> %p10
}
define <4 x i32> @test62(<3 x float> %call4) {
; BE-LABEL: @test62(
; BE-NEXT: [[TMP1:%.*]] = bitcast <3 x float> [[CALL4:%.*]] to <3 x i32>
; BE-NEXT: [[P10:%.*]] = shufflevector <3 x i32> [[TMP1]], <3 x i32> <i32 0, i32 poison, i32 poison>, <4 x i32> <i32 3, i32 0, i32 1, i32 2>
; BE-NEXT: ret <4 x i32> [[P10]]
;
; LE-LABEL: @test62(
; LE-NEXT: [[TMP1:%.*]] = bitcast <3 x float> [[CALL4:%.*]] to <3 x i32>
; LE-NEXT: [[P10:%.*]] = shufflevector <3 x i32> [[TMP1]], <3 x i32> <i32 0, i32 poison, i32 poison>, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
; LE-NEXT: ret <4 x i32> [[P10]]
;
%p11 = bitcast <3 x float> %call4 to i96
%p9 = zext i96 %p11 to i128
%p10 = bitcast i128 %p9 to <4 x i32>
ret <4 x i32> %p10
}
; PR7311 - Don't create invalid IR on scalar->vector cast.
define <2 x float> @test63(i64 %t8) {
; ALL-LABEL: @test63(
; ALL-NEXT: [[A:%.*]] = bitcast i64 [[T8:%.*]] to <2 x i32>
; ALL-NEXT: [[VCVT_I:%.*]] = uitofp <2 x i32> [[A]] to <2 x float>
; ALL-NEXT: ret <2 x float> [[VCVT_I]]
;
%a = bitcast i64 %t8 to <2 x i32>
%vcvt.i = uitofp <2 x i32> %a to <2 x float>
ret <2 x float> %vcvt.i
}
define <4 x float> @test64(<4 x float> %c) {
; ALL-LABEL: @test64(
; ALL-NEXT: ret <4 x float> [[C:%.*]]
;
%t0 = bitcast <4 x float> %c to <4 x i32>
%t1 = bitcast <4 x i32> %t0 to <4 x float>
ret <4 x float> %t1
}
define <4 x float> @test65(<4 x float> %c) {
; ALL-LABEL: @test65(
; ALL-NEXT: ret <4 x float> [[C:%.*]]
;
%t0 = bitcast <4 x float> %c to <2 x double>
%t1 = bitcast <2 x double> %t0 to <4 x float>
ret <4 x float> %t1
}
define <2 x float> @test66(<2 x float> %c) {
; ALL-LABEL: @test66(
; ALL-NEXT: ret <2 x float> [[C:%.*]]
;
%t0 = bitcast <2 x float> %c to double
%t1 = bitcast double %t0 to <2 x float>
ret <2 x float> %t1
}
define float @test2c() {
; ALL-LABEL: @test2c(
; ALL-NEXT: ret float -1.000000e+00
;
ret float extractelement (<2 x float> bitcast (double bitcast (<2 x float> <float -1.000000e+00, float -1.000000e+00> to double) to <2 x float>), i32 0)
}
; PR12514
define i1 @test67(i1 %a, i32 %b) {
; ALL-LABEL: @test67(
; ALL-NEXT: ret i1 false
;
%t2 = zext i1 %a to i32
%conv6 = xor i32 %t2, 1
%and = and i32 %b, %conv6
%sext = shl nuw nsw i32 %and, 24
%neg.i = xor i32 %sext, -16777216
%conv.i.i = ashr exact i32 %neg.i, 24
%trunc = trunc i32 %conv.i.i to i8
%tobool.i = icmp eq i8 %trunc, 0
ret i1 %tobool.i
}
%s = type { i32, i32, i16 }
define %s @test68(ptr %p, i64 %i) {
; ALL-LABEL: @test68(
; ALL-NEXT: [[O:%.*]] = mul i64 [[I:%.*]], 12
; ALL-NEXT: [[PP:%.*]] = getelementptr inbounds i8, ptr [[P:%.*]], i64 [[O]]
; ALL-NEXT: [[L:%.*]] = load [[S:%.*]], ptr [[PP]], align 4
; ALL-NEXT: ret [[S]] [[L]]
;
%o = mul i64 %i, 12
%pp = getelementptr inbounds i8, ptr %p, i64 %o
%l = load %s, ptr %pp
ret %s %l
}
; addrspacecasts should be eliminated.
define %s @test68_addrspacecast(ptr %p, i64 %i) {
; ALL-LABEL: @test68_addrspacecast(
; ALL-NEXT: [[O:%.*]] = mul i64 [[I:%.*]], 12
; ALL-NEXT: [[Q:%.*]] = addrspacecast ptr [[P:%.*]] to ptr addrspace(2)
; ALL-NEXT: [[PP:%.*]] = getelementptr inbounds i8, ptr addrspace(2) [[Q]], i64 [[O]]
; ALL-NEXT: [[R:%.*]] = addrspacecast ptr addrspace(2) [[PP]] to ptr
; ALL-NEXT: [[L:%.*]] = load [[S:%.*]], ptr [[R]], align 4
; ALL-NEXT: ret [[S]] [[L]]
;
%o = mul i64 %i, 12
%q = addrspacecast ptr %p to ptr addrspace(2)
%pp = getelementptr inbounds i8, ptr addrspace(2) %q, i64 %o
%r = addrspacecast ptr addrspace(2) %pp to ptr
%l = load %s, ptr %r
ret %s %l
}
define %s @test68_addrspacecast_2(ptr %p, i64 %i) {
; ALL-LABEL: @test68_addrspacecast_2(
; ALL-NEXT: [[O:%.*]] = mul i64 [[I:%.*]], 12
; ALL-NEXT: [[Q:%.*]] = addrspacecast ptr [[P:%.*]] to ptr addrspace(2)
; ALL-NEXT: [[PP:%.*]] = getelementptr inbounds i8, ptr addrspace(2) [[Q]], i64 [[O]]
; ALL-NEXT: [[R:%.*]] = addrspacecast ptr addrspace(2) [[PP]] to ptr addrspace(1)
; ALL-NEXT: [[L:%.*]] = load [[S:%.*]], ptr addrspace(1) [[R]], align 4
; ALL-NEXT: ret [[S]] [[L]]
;
%o = mul i64 %i, 12
%q = addrspacecast ptr %p to ptr addrspace(2)
%pp = getelementptr inbounds i8, ptr addrspace(2) %q, i64 %o
%r = addrspacecast ptr addrspace(2) %pp to ptr addrspace(1)
%l = load %s, ptr addrspace(1) %r
ret %s %l
}
define %s @test68_as1(ptr addrspace(1) %p, i32 %i) {
; ALL-LABEL: @test68_as1(
; ALL-NEXT: [[O:%.*]] = mul i32 [[I:%.*]], 12
; ALL-NEXT: [[PP:%.*]] = getelementptr inbounds i8, ptr addrspace(1) [[P:%.*]], i32 [[O]]
; ALL-NEXT: [[L:%.*]] = load [[S:%.*]], ptr addrspace(1) [[PP]], align 4
; ALL-NEXT: ret [[S]] [[L]]
;
%o = mul i32 %i, 12
%pp = getelementptr inbounds i8, ptr addrspace(1) %p, i32 %o
%l = load %s, ptr addrspace(1) %pp
ret %s %l
}
define double @test69(ptr %p, i64 %i) {
; ALL-LABEL: @test69(
; ALL-NEXT: [[O:%.*]] = shl nsw i64 [[I:%.*]], 3
; ALL-NEXT: [[PP:%.*]] = getelementptr inbounds i8, ptr [[P:%.*]], i64 [[O]]
; ALL-NEXT: [[L:%.*]] = load double, ptr [[PP]], align 8
; ALL-NEXT: ret double [[L]]
;
%o = shl nsw i64 %i, 3
%pp = getelementptr inbounds i8, ptr %p, i64 %o
%l = load double, ptr %pp
ret double %l
}
define %s @test70(ptr %p, i64 %i) {
; ALL-LABEL: @test70(
; ALL-NEXT: [[O:%.*]] = mul nsw i64 [[I:%.*]], 36
; ALL-NEXT: [[PP:%.*]] = getelementptr inbounds i8, ptr [[P:%.*]], i64 [[O]]
; ALL-NEXT: [[L:%.*]] = load [[S:%.*]], ptr [[PP]], align 4
; ALL-NEXT: ret [[S]] [[L]]
;
%o = mul nsw i64 %i, 36
%pp = getelementptr inbounds i8, ptr %p, i64 %o
%l = load %s, ptr %pp
ret %s %l
}
define double @test71(ptr %p, i64 %i) {
; ALL-LABEL: @test71(
; ALL-NEXT: [[O:%.*]] = shl i64 [[I:%.*]], 5
; ALL-NEXT: [[PP:%.*]] = getelementptr i8, ptr [[P:%.*]], i64 [[O]]
; ALL-NEXT: [[L:%.*]] = load double, ptr [[PP]], align 8
; ALL-NEXT: ret double [[L]]
;
%o = shl i64 %i, 5
%pp = getelementptr i8, ptr %p, i64 %o
%l = load double, ptr %pp
ret double %l
}
define double @test72(ptr %p, i32 %i) {
; ALL-LABEL: @test72(
; ALL-NEXT: [[SO:%.*]] = shl nsw i32 [[I:%.*]], 3
; ALL-NEXT: [[O:%.*]] = sext i32 [[SO]] to i64
; ALL-NEXT: [[PP:%.*]] = getelementptr inbounds i8, ptr [[P:%.*]], i64 [[O]]
; ALL-NEXT: [[L:%.*]] = load double, ptr [[PP]], align 8
; ALL-NEXT: ret double [[L]]
;
%so = shl nsw i32 %i, 3
%o = sext i32 %so to i64
%pp = getelementptr inbounds i8, ptr %p, i64 %o
%l = load double, ptr %pp
ret double %l
}
define double @test73(ptr %p, i128 %i) {
; ALL-LABEL: @test73(
; ALL-NEXT: [[I_TR:%.*]] = trunc i128 [[I:%.*]] to i64
; ALL-NEXT: [[O:%.*]] = shl i64 [[I_TR]], 3
; ALL-NEXT: [[PP:%.*]] = getelementptr inbounds i8, ptr [[P:%.*]], i64 [[O]]
; ALL-NEXT: [[L:%.*]] = load double, ptr [[PP]], align 8
; ALL-NEXT: ret double [[L]]
;
%lo = shl nsw i128 %i, 3
%o = trunc i128 %lo to i64
%pp = getelementptr inbounds i8, ptr %p, i64 %o
%l = load double, ptr %pp
ret double %l
}
define double @test74(ptr %p, i64 %i) {
; ALL-LABEL: @test74(
; ALL-NEXT: [[PP:%.*]] = getelementptr inbounds i64, ptr [[P:%.*]], i64 [[I:%.*]]
; ALL-NEXT: [[L:%.*]] = load double, ptr [[PP]], align 8
; ALL-NEXT: ret double [[L]]
;
%pp = getelementptr inbounds i64, ptr %p, i64 %i
%l = load double, ptr %pp
ret double %l
}
define ptr @test75(ptr %p, i32 %x) {
; ALL-LABEL: @test75(
; ALL-NEXT: [[Y:%.*]] = shl i32 [[X:%.*]], 3
; ALL-NEXT: [[Z:%.*]] = sext i32 [[Y]] to i64
; ALL-NEXT: [[R:%.*]] = getelementptr i8, ptr [[P:%.*]], i64 [[Z]]
; ALL-NEXT: ret ptr [[R]]
;
%y = shl i32 %x, 3
%z = sext i32 %y to i64
%r = getelementptr i8, ptr %p, i64 %z
ret ptr %r
}
define %s @test76(ptr %p, i64 %i, i64 %j) {
; ALL-LABEL: @test76(
; ALL-NEXT: [[O:%.*]] = mul i64 [[I:%.*]], 12
; ALL-NEXT: [[O2:%.*]] = mul nsw i64 [[O]], [[J:%.*]]
; ALL-NEXT: [[PP:%.*]] = getelementptr inbounds i8, ptr [[P:%.*]], i64 [[O2]]
; ALL-NEXT: [[L:%.*]] = load [[S:%.*]], ptr [[PP]], align 4
; ALL-NEXT: ret [[S]] [[L]]
;
%o = mul i64 %i, 12
%o2 = mul nsw i64 %o, %j
%pp = getelementptr inbounds i8, ptr %p, i64 %o2
%l = load %s, ptr %pp
ret %s %l
}
define %s @test77(ptr %p, i64 %i, i64 %j) {
; ALL-LABEL: @test77(
; ALL-NEXT: [[O:%.*]] = mul nsw i64 [[I:%.*]], 36
; ALL-NEXT: [[O2:%.*]] = mul nsw i64 [[O]], [[J:%.*]]
; ALL-NEXT: [[PP:%.*]] = getelementptr inbounds i8, ptr [[P:%.*]], i64 [[O2]]
; ALL-NEXT: [[L:%.*]] = load [[S:%.*]], ptr [[PP]], align 4
; ALL-NEXT: ret [[S]] [[L]]
;
%o = mul nsw i64 %i, 36
%o2 = mul nsw i64 %o, %j
%pp = getelementptr inbounds i8, ptr %p, i64 %o2
%l = load %s, ptr %pp
ret %s %l
}
define %s @test78(ptr %p, i64 %i, i64 %j, i32 %k, i32 %l, i128 %m, i128 %n) {
; ALL-LABEL: @test78(
; ALL-NEXT: [[A:%.*]] = mul nsw i32 [[K:%.*]], 36
; ALL-NEXT: [[B:%.*]] = mul nsw i32 [[A]], [[L:%.*]]
; ALL-NEXT: [[C:%.*]] = sext i32 [[B]] to i128
; ALL-NEXT: [[D:%.*]] = mul nsw i128 [[M:%.*]], [[C]]
; ALL-NEXT: [[E:%.*]] = mul i128 [[D]], [[N:%.*]]
; ALL-NEXT: [[F:%.*]] = trunc i128 [[E]] to i64
; ALL-NEXT: [[G:%.*]] = mul nsw i64 [[I:%.*]], [[F]]
; ALL-NEXT: [[H:%.*]] = mul nsw i64 [[G]], [[J:%.*]]
; ALL-NEXT: [[PP:%.*]] = getelementptr inbounds i8, ptr [[P:%.*]], i64 [[H]]
; ALL-NEXT: [[LOAD:%.*]] = load [[S:%.*]], ptr [[PP]], align 4
; ALL-NEXT: ret [[S]] [[LOAD]]
;
%a = mul nsw i32 %k, 36
%b = mul nsw i32 %a, %l
%c = sext i32 %b to i128
%d = mul nsw i128 %c, %m
%e = mul i128 %d, %n
%f = trunc i128 %e to i64
%g = mul nsw i64 %f, %i
%h = mul nsw i64 %g, %j
%pp = getelementptr inbounds i8, ptr %p, i64 %h
%load = load %s, ptr %pp
ret %s %load
}
define %s @test79(ptr %p, i64 %i, i32 %j) {
; ALL-LABEL: @test79(
; ALL-NEXT: [[TMP1:%.*]] = trunc i64 [[I:%.*]] to i32
; ALL-NEXT: [[B:%.*]] = mul i32 [[TMP1]], 36
; ALL-NEXT: [[C:%.*]] = mul i32 [[B]], [[J:%.*]]
; ALL-NEXT: [[TMP2:%.*]] = sext i32 [[C]] to i64
; ALL-NEXT: [[PP:%.*]] = getelementptr inbounds i8, ptr [[P:%.*]], i64 [[TMP2]]
; ALL-NEXT: [[L:%.*]] = load [[S:%.*]], ptr [[PP]], align 4
; ALL-NEXT: ret [[S]] [[L]]
;
%a = mul nsw i64 %i, 36
%b = trunc i64 %a to i32
%c = mul i32 %b, %j
%pp = getelementptr inbounds i8, ptr %p, i32 %c
%l = load %s, ptr %pp
ret %s %l
}
define double @test80(ptr %p, i32 %i) {
; ALL-LABEL: @test80(
; ALL-NEXT: [[T:%.*]] = shl nsw i32 [[I:%.*]], 3
; ALL-NEXT: [[TMP1:%.*]] = sext i32 [[T]] to i64
; ALL-NEXT: [[PP:%.*]] = getelementptr i8, ptr [[P:%.*]], i64 [[TMP1]]
; ALL-NEXT: [[L:%.*]] = load double, ptr [[PP]], align 8
; ALL-NEXT: ret double [[L]]
;
%t = shl nsw i32 %i, 3
%pp = getelementptr i8, ptr %p, i32 %t
%l = load double, ptr %pp
ret double %l
}
define double @test80_addrspacecast(ptr addrspace(1) %p, i32 %i) {
; ALL-LABEL: @test80_addrspacecast(
; ALL-NEXT: [[T:%.*]] = shl nsw i32 [[I:%.*]], 3
; ALL-NEXT: [[Q:%.*]] = addrspacecast ptr addrspace(1) [[P:%.*]] to ptr addrspace(2)
; ALL-NEXT: [[TMP1:%.*]] = sext i32 [[T]] to i64
; ALL-NEXT: [[PP:%.*]] = getelementptr i8, ptr addrspace(2) [[Q]], i64 [[TMP1]]
; ALL-NEXT: [[R:%.*]] = addrspacecast ptr addrspace(2) [[PP]] to ptr addrspace(1)
; ALL-NEXT: [[L:%.*]] = load double, ptr addrspace(1) [[R]], align 8
; ALL-NEXT: ret double [[L]]
;
%t = shl nsw i32 %i, 3
%q = addrspacecast ptr addrspace(1) %p to ptr addrspace(2)
%pp = getelementptr i8, ptr addrspace(2) %q, i32 %t
%r = addrspacecast ptr addrspace(2) %pp to ptr addrspace(1)
%l = load double, ptr addrspace(1) %r
ret double %l
}
define double @test80_addrspacecast_2(ptr addrspace(1) %p, i32 %i) {
; ALL-LABEL: @test80_addrspacecast_2(
; ALL-NEXT: [[T:%.*]] = shl nsw i32 [[I:%.*]], 3
; ALL-NEXT: [[Q:%.*]] = addrspacecast ptr addrspace(1) [[P:%.*]] to ptr addrspace(2)
; ALL-NEXT: [[TMP1:%.*]] = sext i32 [[T]] to i64
; ALL-NEXT: [[PP:%.*]] = getelementptr i8, ptr addrspace(2) [[Q]], i64 [[TMP1]]
; ALL-NEXT: [[R:%.*]] = addrspacecast ptr addrspace(2) [[PP]] to ptr addrspace(3)
; ALL-NEXT: [[L:%.*]] = load double, ptr addrspace(3) [[R]], align 8
; ALL-NEXT: ret double [[L]]
;
%t = shl nsw i32 %i, 3
%q = addrspacecast ptr addrspace(1) %p to ptr addrspace(2)
%pp = getelementptr i8, ptr addrspace(2) %q, i32 %t
%r = addrspacecast ptr addrspace(2) %pp to ptr addrspace(3)
%l = load double, ptr addrspace(3) %r
ret double %l
}
define double @test80_as1(ptr addrspace(1) %p, i16 %i) {
; ALL-LABEL: @test80_as1(
; ALL-NEXT: [[T:%.*]] = shl nsw i16 [[I:%.*]], 3
; ALL-NEXT: [[TMP1:%.*]] = sext i16 [[T]] to i32
; ALL-NEXT: [[PP:%.*]] = getelementptr i8, ptr addrspace(1) [[P:%.*]], i32 [[TMP1]]
; ALL-NEXT: [[L:%.*]] = load double, ptr addrspace(1) [[PP]], align 8
; ALL-NEXT: ret double [[L]]
;
%t = shl nsw i16 %i, 3
%pp = getelementptr i8, ptr addrspace(1) %p, i16 %t
%l = load double, ptr addrspace(1) %pp
ret double %l
}
define double @test81(ptr %p, float %f) {
; ALL-LABEL: @test81(
; ALL-NEXT: [[I:%.*]] = fptosi float [[F:%.*]] to i64
; ALL-NEXT: [[PP:%.*]] = getelementptr i8, ptr [[P:%.*]], i64 [[I]]
; ALL-NEXT: [[L:%.*]] = load double, ptr [[PP]], align 8
; ALL-NEXT: ret double [[L]]
;
%i = fptosi float %f to i64
%pp = getelementptr i8, ptr %p, i64 %i
%l = load double, ptr %pp
ret double %l
}
define i64 @test82(i64 %A) {
; ALL-LABEL: @test82(
; ALL-NEXT: [[TMP1:%.*]] = shl i64 [[A:%.*]], 1
; ALL-NEXT: [[D:%.*]] = and i64 [[TMP1]], 4294966784
; ALL-NEXT: ret i64 [[D]]
;
%B = trunc i64 %A to i32
%C = lshr i32 %B, 8
%D = shl i32 %C, 9
%E = zext i32 %D to i64
ret i64 %E
}
; PR15959
define i64 @test83(i16 %a, i64 %k) {
; ALL-LABEL: @test83(
; ALL-NEXT: [[CONV:%.*]] = sext i16 [[A:%.*]] to i32
; ALL-NEXT: [[TMP1:%.*]] = trunc i64 [[K:%.*]] to i32
; ALL-NEXT: [[SH_PROM:%.*]] = add i32 [[TMP1]], -1
; ALL-NEXT: [[SHL:%.*]] = shl i32 [[CONV]], [[SH_PROM]]
; ALL-NEXT: [[SH_PROM1:%.*]] = zext i32 [[SHL]] to i64
; ALL-NEXT: ret i64 [[SH_PROM1]]
;
%conv = sext i16 %a to i32
%sub = add nsw i64 %k, -1
%sh_prom = trunc i64 %sub to i32
%shl = shl i32 %conv, %sh_prom
%sh_prom1 = zext i32 %shl to i64
ret i64 %sh_prom1
}
define i8 @test84(i32 %a) {
; ALL-LABEL: @test84(
; ALL-NEXT: [[ADD:%.*]] = add i32 [[A:%.*]], 2130706432
; ALL-NEXT: [[SHR:%.*]] = lshr i32 [[ADD]], 23
; ALL-NEXT: [[TRUNC:%.*]] = trunc i32 [[SHR]] to i8
; ALL-NEXT: ret i8 [[TRUNC]]
;
%add = add nsw i32 %a, -16777216
%shr = lshr exact i32 %add, 23
%trunc = trunc i32 %shr to i8
ret i8 %trunc
}
define i8 @test85(i32 %a) {
; ALL-LABEL: @test85(
; ALL-NEXT: [[ADD:%.*]] = add i32 [[A:%.*]], 2130706432
; ALL-NEXT: [[SHR:%.*]] = lshr i32 [[ADD]], 23
; ALL-NEXT: [[TRUNC:%.*]] = trunc i32 [[SHR]] to i8
; ALL-NEXT: ret i8 [[TRUNC]]
;
%add = add nuw i32 %a, -16777216
%shr = lshr exact i32 %add, 23
%trunc = trunc i32 %shr to i8
ret i8 %trunc
}
define i16 @test86(i16 %v) {
; ALL-LABEL: @test86(
; ALL-NEXT: [[TMP1:%.*]] = ashr i16 [[V:%.*]], 4
; ALL-NEXT: ret i16 [[TMP1]]
;
%a = sext i16 %v to i32
%s = ashr i32 %a, 4
%t = trunc i32 %s to i16
ret i16 %t
}
define i16 @test87(i16 %v) {
; ALL-LABEL: @test87(
; ALL-NEXT: [[TMP1:%.*]] = ashr i16 [[V:%.*]], 12
; ALL-NEXT: ret i16 [[TMP1]]
;
%c = sext i16 %v to i32
%m = mul nsw i32 %c, 16
%a = ashr i32 %m, 16
%t = trunc i32 %a to i16
ret i16 %t
}
define i16 @test88(i16 %v) {
; ALL-LABEL: @test88(
; ALL-NEXT: [[TMP1:%.*]] = ashr i16 [[V:%.*]], 15
; ALL-NEXT: ret i16 [[TMP1]]
;
%a = sext i16 %v to i32
%s = ashr i32 %a, 18
%t = trunc i32 %s to i16
ret i16 %t
}
define i32 @PR21388(ptr %v) {
; ALL-LABEL: @PR21388(
; ALL-NEXT: [[ICMP:%.*]] = icmp slt ptr [[V:%.*]], null
; ALL-NEXT: [[SEXT:%.*]] = sext i1 [[ICMP]] to i32
; ALL-NEXT: ret i32 [[SEXT]]
;
%icmp = icmp slt ptr %v, null
%sext = sext i1 %icmp to i32
ret i32 %sext
}
define float @sitofp_zext(i16 %a) {
; ALL-LABEL: @sitofp_zext(
; ALL-NEXT: [[SITOFP:%.*]] = uitofp i16 [[A:%.*]] to float
; ALL-NEXT: ret float [[SITOFP]]
;
%zext = zext i16 %a to i32
%sitofp = sitofp i32 %zext to float
ret float %sitofp
}
define i1 @PR23309(i32 %A, i32 %B) {
; ALL-LABEL: @PR23309(
; ALL-NEXT: [[SUB:%.*]] = sub i32 [[A:%.*]], [[B:%.*]]
; ALL-NEXT: [[TRUNC:%.*]] = trunc i32 [[SUB]] to i1
; ALL-NEXT: ret i1 [[TRUNC]]
;
%add = add i32 %A, -4
%sub = sub nsw i32 %add, %B
%trunc = trunc i32 %sub to i1
ret i1 %trunc
}
define i1 @PR23309v2(i32 %A, i32 %B) {
; ALL-LABEL: @PR23309v2(
; ALL-NEXT: [[SUB:%.*]] = add i32 [[A:%.*]], [[B:%.*]]
; ALL-NEXT: [[TRUNC:%.*]] = trunc i32 [[SUB]] to i1
; ALL-NEXT: ret i1 [[TRUNC]]
;
%add = add i32 %A, -4
%sub = add nuw i32 %add, %B
%trunc = trunc i32 %sub to i1
ret i1 %trunc
}
define i16 @PR24763(i8 %V) {
; ALL-LABEL: @PR24763(
; ALL-NEXT: [[TMP1:%.*]] = ashr i8 [[V:%.*]], 1
; ALL-NEXT: [[T:%.*]] = sext i8 [[TMP1]] to i16
; ALL-NEXT: ret i16 [[T]]
;
%conv = sext i8 %V to i32
%l = lshr i32 %conv, 1
%t = trunc i32 %l to i16
ret i16 %t
}
define i64 @PR28745() {
; BE-LABEL: @PR28745(
; BE-NEXT: ret i64 1
;
; LE-LABEL: @PR28745(
; LE-NEXT: ret i64 0
;
%c = icmp eq i16 extractelement (<2 x i16> bitcast (<1 x i32> <i32 1> to <2 x i16>), i32 0), 0
%s = select i1 %c, { i32 } { i32 1 }, { i32 } zeroinitializer
%e = extractvalue { i32 } %s, 0
%b = zext i32 %e to i64
ret i64 %b
}
define i32 @test89() {
; BE-LABEL: @test89(
; BE-NEXT: ret i32 393216
;
; LE-LABEL: @test89(
; LE-NEXT: ret i32 6
;
ret i32 bitcast (<2 x i16> <i16 6, i16 poison> to i32)
}
define <2 x i32> @test90() {
; BE-LABEL: @test90(
; BE-NEXT: ret <2 x i32> <i32 0, i32 15360>
;
; LE-LABEL: @test90(
; LE-NEXT: ret <2 x i32> <i32 0, i32 1006632960>
;
%t6 = bitcast <4 x half> <half poison, half poison, half poison, half 0xH3C00> to <2 x i32>
ret <2 x i32> %t6
}
; Do not optimize to ashr i64 (shift by 48 > 96 - 64)
define i64 @test91(i64 %A) {
; ALL-LABEL: @test91(
; ALL-NEXT: [[B:%.*]] = sext i64 [[A:%.*]] to i96
; ALL-NEXT: [[C:%.*]] = lshr i96 [[B]], 48
; ALL-NEXT: [[D:%.*]] = trunc nuw nsw i96 [[C]] to i64
; ALL-NEXT: ret i64 [[D]]
;
%B = sext i64 %A to i96
%C = lshr i96 %B, 48
%D = trunc i96 %C to i64
ret i64 %D
}
; Do optimize to ashr i64 (shift by 32 <= 96 - 64)
define i64 @test92(i64 %A) {
; ALL-LABEL: @test92(
; ALL-NEXT: [[TMP1:%.*]] = ashr i64 [[A:%.*]], 32
; ALL-NEXT: ret i64 [[TMP1]]
;
%B = sext i64 %A to i96
%C = lshr i96 %B, 32
%D = trunc i96 %C to i64
ret i64 %D
}
; When optimizing to ashr i32, don't shift by more than 31.
define i32 @test93(i32 %A) {
; ALL-LABEL: @test93(
; ALL-NEXT: [[TMP1:%.*]] = ashr i32 [[A:%.*]], 31
; ALL-NEXT: ret i32 [[TMP1]]
;
%B = sext i32 %A to i96
%C = lshr i96 %B, 64
%D = trunc i96 %C to i32
ret i32 %D
}
define i8 @trunc_lshr_sext(i8 %A) {
; ALL-LABEL: @trunc_lshr_sext(
; ALL-NEXT: [[D:%.*]] = ashr i8 [[A:%.*]], 6
; ALL-NEXT: ret i8 [[D]]
;
%B = sext i8 %A to i32
%C = lshr i32 %B, 6
%D = trunc i32 %C to i8
ret i8 %D
}
define i8 @trunc_lshr_sext_exact(i8 %A) {
; ALL-LABEL: @trunc_lshr_sext_exact(
; ALL-NEXT: [[D:%.*]] = ashr exact i8 [[A:%.*]], 6
; ALL-NEXT: ret i8 [[D]]
;
%B = sext i8 %A to i32
%C = lshr exact i32 %B, 6
%D = trunc i32 %C to i8
ret i8 %D
}
define <2 x i8> @trunc_lshr_sext_uniform(<2 x i8> %A) {
; ALL-LABEL: @trunc_lshr_sext_uniform(
; ALL-NEXT: [[D:%.*]] = ashr <2 x i8> [[A:%.*]], splat (i8 6)
; ALL-NEXT: ret <2 x i8> [[D]]
;
%B = sext <2 x i8> %A to <2 x i32>
%C = lshr <2 x i32> %B, <i32 6, i32 6>
%D = trunc <2 x i32> %C to <2 x i8>
ret <2 x i8> %D
}
define <2 x i8> @trunc_lshr_sext_uniform_poison(<2 x i8> %A) {
; ALL-LABEL: @trunc_lshr_sext_uniform_poison(
; ALL-NEXT: [[D:%.*]] = ashr <2 x i8> [[A:%.*]], <i8 6, i8 poison>
; ALL-NEXT: ret <2 x i8> [[D]]
;
%B = sext <2 x i8> %A to <2 x i32>
%C = lshr <2 x i32> %B, <i32 6, i32 poison>
%D = trunc <2 x i32> %C to <2 x i8>
ret <2 x i8> %D
}
define <2 x i8> @trunc_lshr_sext_nonuniform(<2 x i8> %A) {
; ALL-LABEL: @trunc_lshr_sext_nonuniform(
; ALL-NEXT: [[D:%.*]] = ashr <2 x i8> [[A:%.*]], <i8 6, i8 2>
; ALL-NEXT: ret <2 x i8> [[D]]
;
%B = sext <2 x i8> %A to <2 x i32>
%C = lshr <2 x i32> %B, <i32 6, i32 2>
%D = trunc <2 x i32> %C to <2 x i8>
ret <2 x i8> %D
}
define <3 x i8> @trunc_lshr_sext_nonuniform_poison(<3 x i8> %A) {
; ALL-LABEL: @trunc_lshr_sext_nonuniform_poison(
; ALL-NEXT: [[D:%.*]] = ashr <3 x i8> [[A:%.*]], <i8 6, i8 2, i8 poison>
; ALL-NEXT: ret <3 x i8> [[D]]
;
%B = sext <3 x i8> %A to <3 x i32>
%C = lshr <3 x i32> %B, <i32 6, i32 2, i32 poison>
%D = trunc <3 x i32> %C to <3 x i8>
ret <3 x i8> %D
}
define <2 x i8> @trunc_lshr_sext_uses1(<2 x i8> %A) {
; ALL-LABEL: @trunc_lshr_sext_uses1(
; ALL-NEXT: [[B:%.*]] = sext <2 x i8> [[A:%.*]] to <2 x i32>
; ALL-NEXT: call void @use_v2i32(<2 x i32> [[B]])
; ALL-NEXT: [[D:%.*]] = ashr <2 x i8> [[A]], splat (i8 6)
; ALL-NEXT: ret <2 x i8> [[D]]
;
%B = sext <2 x i8> %A to <2 x i32>
call void @use_v2i32(<2 x i32> %B)
%C = lshr <2 x i32> %B, <i32 6, i32 6>
%D = trunc <2 x i32> %C to <2 x i8>
ret <2 x i8> %D
}
define i8 @trunc_lshr_sext_uses2(i8 %A) {
; ALL-LABEL: @trunc_lshr_sext_uses2(
; ALL-NEXT: [[B:%.*]] = sext i8 [[A:%.*]] to i32
; ALL-NEXT: [[C:%.*]] = lshr i32 [[B]], 6
; ALL-NEXT: call void @use_i32(i32 [[C]])
; ALL-NEXT: [[D:%.*]] = ashr i8 [[A]], 6
; ALL-NEXT: ret i8 [[D]]
;
%B = sext i8 %A to i32
%C = lshr i32 %B, 6
call void @use_i32(i32 %C)
%D = trunc i32 %C to i8
ret i8 %D
}
define <2 x i8> @trunc_lshr_sext_uses3(<2 x i8> %A) {
; ALL-LABEL: @trunc_lshr_sext_uses3(
; ALL-NEXT: [[B:%.*]] = sext <2 x i8> [[A:%.*]] to <2 x i32>
; ALL-NEXT: call void @use_v2i32(<2 x i32> [[B]])
; ALL-NEXT: [[C:%.*]] = lshr <2 x i32> [[B]], splat (i32 6)
; ALL-NEXT: call void @use_v2i32(<2 x i32> [[C]])
; ALL-NEXT: [[D:%.*]] = ashr <2 x i8> [[A]], splat (i8 6)
; ALL-NEXT: ret <2 x i8> [[D]]
;
%B = sext <2 x i8 >%A to <2 x i32>
call void @use_v2i32(<2 x i32> %B)
%C = lshr <2 x i32> %B, <i32 6, i32 6>
call void @use_v2i32(<2 x i32> %C)
%D = trunc <2 x i32 >%C to <2 x i8>
ret <2 x i8> %D
}
define <2 x i8> @trunc_lshr_overshift_sext(<2 x i8> %A) {
; ALL-LABEL: @trunc_lshr_overshift_sext(
; ALL-NEXT: [[D:%.*]] = ashr <2 x i8> [[A:%.*]], splat (i8 7)
; ALL-NEXT: ret <2 x i8> [[D]]
;
%B = sext <2 x i8> %A to <2 x i32>
%C = lshr <2 x i32> %B, <i32 8, i32 8>
%D = trunc <2 x i32> %C to <2 x i8>
ret <2 x i8> %D
}
define i8 @trunc_lshr_overshift_sext_uses1(i8 %A) {
; ALL-LABEL: @trunc_lshr_overshift_sext_uses1(
; ALL-NEXT: [[B:%.*]] = sext i8 [[A:%.*]] to i32
; ALL-NEXT: call void @use_i32(i32 [[B]])
; ALL-NEXT: [[D:%.*]] = ashr i8 [[A]], 7
; ALL-NEXT: ret i8 [[D]]
;
%B = sext i8 %A to i32
call void @use_i32(i32 %B)
%C = lshr i32 %B, 8
%D = trunc i32 %C to i8
ret i8 %D
}
define <2 x i8> @trunc_lshr_overshift_sext_uses2(<2 x i8> %A) {
; ALL-LABEL: @trunc_lshr_overshift_sext_uses2(
; ALL-NEXT: [[B:%.*]] = sext <2 x i8> [[A:%.*]] to <2 x i32>
; ALL-NEXT: [[C:%.*]] = lshr <2 x i32> [[B]], splat (i32 8)
; ALL-NEXT: call void @use_v2i32(<2 x i32> [[C]])
; ALL-NEXT: [[D:%.*]] = ashr <2 x i8> [[A]], splat (i8 7)
; ALL-NEXT: ret <2 x i8> [[D]]
;
%B = sext <2 x i8> %A to <2 x i32>
%C = lshr <2 x i32> %B, <i32 8, i32 8>
call void @use_v2i32(<2 x i32> %C)
%D = trunc <2 x i32> %C to <2 x i8>
ret <2 x i8> %D
}
define i8 @trunc_lshr_overshift_sext_uses3(i8 %A) {
; ALL-LABEL: @trunc_lshr_overshift_sext_uses3(
; ALL-NEXT: [[B:%.*]] = sext i8 [[A:%.*]] to i32
; ALL-NEXT: call void @use_i32(i32 [[B]])
; ALL-NEXT: [[C:%.*]] = lshr i32 [[B]], 8
; ALL-NEXT: call void @use_i32(i32 [[C]])
; ALL-NEXT: [[D:%.*]] = ashr i8 [[A]], 7
; ALL-NEXT: ret i8 [[D]]
;
%B = sext i8 %A to i32
call void @use_i32(i32 %B)
%C = lshr i32 %B, 8
call void @use_i32(i32 %C)
%D = trunc i32 %C to i8
ret i8 %D
}
define i8 @trunc_lshr_sext_wide_input(i16 %A) {
; ALL-LABEL: @trunc_lshr_sext_wide_input(
; ALL-NEXT: [[TMP1:%.*]] = ashr i16 [[A:%.*]], 9
; ALL-NEXT: [[D:%.*]] = trunc nsw i16 [[TMP1]] to i8
; ALL-NEXT: ret i8 [[D]]
;
%B = sext i16 %A to i32
%C = lshr i32 %B, 9
%D = trunc i32 %C to i8
ret i8 %D
}
define i8 @trunc_lshr_sext_wide_input_exact(i16 %A) {
; ALL-LABEL: @trunc_lshr_sext_wide_input_exact(
; ALL-NEXT: [[TMP1:%.*]] = ashr exact i16 [[A:%.*]], 9
; ALL-NEXT: [[D:%.*]] = trunc nsw i16 [[TMP1]] to i8
; ALL-NEXT: ret i8 [[D]]
;
%B = sext i16 %A to i32
%C = lshr exact i32 %B, 9
%D = trunc i32 %C to i8
ret i8 %D
}
define <2 x i8> @trunc_lshr_sext_wide_input_uses1(<2 x i16> %A) {
; ALL-LABEL: @trunc_lshr_sext_wide_input_uses1(
; ALL-NEXT: [[B:%.*]] = sext <2 x i16> [[A:%.*]] to <2 x i32>
; ALL-NEXT: call void @use_v2i32(<2 x i32> [[B]])
; ALL-NEXT: [[TMP1:%.*]] = ashr <2 x i16> [[A]], splat (i16 9)
; ALL-NEXT: [[D:%.*]] = trunc nsw <2 x i16> [[TMP1]] to <2 x i8>
; ALL-NEXT: ret <2 x i8> [[D]]
;
%B = sext <2 x i16> %A to <2 x i32>
call void @use_v2i32(<2 x i32> %B)
%C = lshr <2 x i32> %B, <i32 9, i32 9>
%D = trunc <2 x i32> %C to <2 x i8>
ret <2 x i8> %D
}
define i8 @trunc_lshr_sext_wide_input_uses2(i16 %A) {
; ALL-LABEL: @trunc_lshr_sext_wide_input_uses2(
; ALL-NEXT: [[B:%.*]] = sext i16 [[A:%.*]] to i32
; ALL-NEXT: [[C:%.*]] = lshr i32 [[B]], 9
; ALL-NEXT: call void @use_i32(i32 [[C]])
; ALL-NEXT: [[D:%.*]] = trunc i32 [[C]] to i8
; ALL-NEXT: ret i8 [[D]]
;
%B = sext i16 %A to i32
%C = lshr i32 %B, 9
call void @use_i32(i32 %C)
%D = trunc i32 %C to i8
ret i8 %D
}
define <2 x i8> @trunc_lshr_sext_wide_input_uses3(<2 x i16> %A) {
; ALL-LABEL: @trunc_lshr_sext_wide_input_uses3(
; ALL-NEXT: [[B:%.*]] = sext <2 x i16> [[A:%.*]] to <2 x i32>
; ALL-NEXT: call void @use_v2i32(<2 x i32> [[B]])
; ALL-NEXT: [[C:%.*]] = lshr <2 x i32> [[B]], splat (i32 9)
; ALL-NEXT: call void @use_v2i32(<2 x i32> [[C]])
; ALL-NEXT: [[D:%.*]] = trunc <2 x i32> [[C]] to <2 x i8>
; ALL-NEXT: ret <2 x i8> [[D]]
;
%B = sext <2 x i16 >%A to <2 x i32>
call void @use_v2i32(<2 x i32> %B)
%C = lshr <2 x i32> %B, <i32 9, i32 9>
call void @use_v2i32(<2 x i32> %C)
%D = trunc <2 x i32 >%C to <2 x i8>
ret <2 x i8> %D
}
define <2 x i8> @trunc_lshr_overshift_wide_input_sext(<2 x i16> %A) {
; ALL-LABEL: @trunc_lshr_overshift_wide_input_sext(
; ALL-NEXT: [[TMP1:%.*]] = ashr <2 x i16> [[A:%.*]], splat (i16 15)
; ALL-NEXT: [[D:%.*]] = trunc nsw <2 x i16> [[TMP1]] to <2 x i8>
; ALL-NEXT: ret <2 x i8> [[D]]
;
%B = sext <2 x i16> %A to <2 x i32>
%C = lshr <2 x i32> %B, <i32 16, i32 16>
%D = trunc <2 x i32> %C to <2 x i8>
ret <2 x i8> %D
}
define i8 @trunc_lshr_overshift_sext_wide_input_uses1(i16 %A) {
; ALL-LABEL: @trunc_lshr_overshift_sext_wide_input_uses1(
; ALL-NEXT: [[B:%.*]] = sext i16 [[A:%.*]] to i32
; ALL-NEXT: call void @use_i32(i32 [[B]])
; ALL-NEXT: [[TMP1:%.*]] = ashr i16 [[A]], 15
; ALL-NEXT: [[D:%.*]] = trunc nsw i16 [[TMP1]] to i8
; ALL-NEXT: ret i8 [[D]]
;
%B = sext i16 %A to i32
call void @use_i32(i32 %B)
%C = lshr i32 %B, 16
%D = trunc i32 %C to i8
ret i8 %D
}
define <2 x i8> @trunc_lshr_overshift_sext_wide_input_uses2(<2 x i16> %A) {
; ALL-LABEL: @trunc_lshr_overshift_sext_wide_input_uses2(
; ALL-NEXT: [[TMP1:%.*]] = ashr <2 x i16> [[A:%.*]], splat (i16 15)
; ALL-NEXT: [[C:%.*]] = zext <2 x i16> [[TMP1]] to <2 x i32>
; ALL-NEXT: call void @use_v2i32(<2 x i32> [[C]])
; ALL-NEXT: [[D:%.*]] = trunc nsw <2 x i16> [[TMP1]] to <2 x i8>
; ALL-NEXT: ret <2 x i8> [[D]]
;
%B = sext <2 x i16> %A to <2 x i32>
%C = lshr <2 x i32> %B, <i32 16, i32 16>
call void @use_v2i32(<2 x i32> %C)
%D = trunc <2 x i32> %C to <2 x i8>
ret <2 x i8> %D
}
define i8 @trunc_lshr_overshift_sext_wide_input_uses3(i16 %A) {
; ALL-LABEL: @trunc_lshr_overshift_sext_wide_input_uses3(
; ALL-NEXT: [[B:%.*]] = sext i16 [[A:%.*]] to i32
; ALL-NEXT: call void @use_i32(i32 [[B]])
; ALL-NEXT: [[C:%.*]] = lshr i32 [[B]], 16
; ALL-NEXT: call void @use_i32(i32 [[C]])
; ALL-NEXT: [[D:%.*]] = trunc i32 [[C]] to i8
; ALL-NEXT: ret i8 [[D]]
;
%B = sext i16 %A to i32
call void @use_i32(i32 %B)
%C = lshr i32 %B, 16
call void @use_i32(i32 %C)
%D = trunc i32 %C to i8
ret i8 %D
}
define i16 @trunc_lshr_sext_narrow_input(i8 %A) {
; ALL-LABEL: @trunc_lshr_sext_narrow_input(
; ALL-NEXT: [[TMP1:%.*]] = ashr i8 [[A:%.*]], 6
; ALL-NEXT: [[D:%.*]] = sext i8 [[TMP1]] to i16
; ALL-NEXT: ret i16 [[D]]
;
%B = sext i8 %A to i32
%C = lshr i32 %B, 6
%D = trunc i32 %C to i16
ret i16 %D
}
define <2 x i16> @trunc_lshr_sext_narrow_input_uses1(<2 x i8> %A) {
; ALL-LABEL: @trunc_lshr_sext_narrow_input_uses1(
; ALL-NEXT: [[B:%.*]] = sext <2 x i8> [[A:%.*]] to <2 x i32>
; ALL-NEXT: call void @use_v2i32(<2 x i32> [[B]])
; ALL-NEXT: [[TMP1:%.*]] = ashr <2 x i8> [[A]], splat (i8 6)
; ALL-NEXT: [[D:%.*]] = sext <2 x i8> [[TMP1]] to <2 x i16>
; ALL-NEXT: ret <2 x i16> [[D]]
;
%B = sext <2 x i8> %A to <2 x i32>
call void @use_v2i32(<2 x i32> %B)
%C = lshr <2 x i32> %B, <i32 6, i32 6>
%D = trunc <2 x i32> %C to <2 x i16>
ret <2 x i16> %D
}
define i16 @trunc_lshr_sext_narrow_input_uses2(i8 %A) {
; ALL-LABEL: @trunc_lshr_sext_narrow_input_uses2(
; ALL-NEXT: [[B:%.*]] = sext i8 [[A:%.*]] to i32
; ALL-NEXT: [[C:%.*]] = lshr i32 [[B]], 6
; ALL-NEXT: call void @use_i32(i32 [[C]])
; ALL-NEXT: [[D:%.*]] = trunc i32 [[C]] to i16
; ALL-NEXT: ret i16 [[D]]
;
%B = sext i8 %A to i32
%C = lshr i32 %B, 6
call void @use_i32(i32 %C)
%D = trunc i32 %C to i16
ret i16 %D
}
define <2 x i16> @trunc_lshr_sext_narrow_input_uses3(<2 x i8> %A) {
; ALL-LABEL: @trunc_lshr_sext_narrow_input_uses3(
; ALL-NEXT: [[B:%.*]] = sext <2 x i8> [[A:%.*]] to <2 x i32>
; ALL-NEXT: call void @use_v2i32(<2 x i32> [[B]])
; ALL-NEXT: [[C:%.*]] = lshr <2 x i32> [[B]], splat (i32 6)
; ALL-NEXT: call void @use_v2i32(<2 x i32> [[C]])
; ALL-NEXT: [[D:%.*]] = trunc <2 x i32> [[C]] to <2 x i16>
; ALL-NEXT: ret <2 x i16> [[D]]
;
%B = sext <2 x i8 >%A to <2 x i32>
call void @use_v2i32(<2 x i32> %B)
%C = lshr <2 x i32> %B, <i32 6, i32 6>
call void @use_v2i32(<2 x i32> %C)
%D = trunc <2 x i32 >%C to <2 x i16>
ret <2 x i16> %D
}
define <2 x i16> @trunc_lshr_overshift_narrow_input_sext(<2 x i8> %A) {
; ALL-LABEL: @trunc_lshr_overshift_narrow_input_sext(
; ALL-NEXT: [[TMP1:%.*]] = ashr <2 x i8> [[A:%.*]], splat (i8 7)
; ALL-NEXT: [[D:%.*]] = sext <2 x i8> [[TMP1]] to <2 x i16>
; ALL-NEXT: ret <2 x i16> [[D]]
;
%B = sext <2 x i8> %A to <2 x i32>
%C = lshr <2 x i32> %B, <i32 8, i32 8>
%D = trunc <2 x i32> %C to <2 x i16>
ret <2 x i16> %D
}
define i16 @trunc_lshr_overshift_sext_narrow_input_uses1(i8 %A) {
; ALL-LABEL: @trunc_lshr_overshift_sext_narrow_input_uses1(
; ALL-NEXT: [[B:%.*]] = sext i8 [[A:%.*]] to i32
; ALL-NEXT: call void @use_i32(i32 [[B]])
; ALL-NEXT: [[TMP1:%.*]] = ashr i8 [[A]], 7
; ALL-NEXT: [[D:%.*]] = sext i8 [[TMP1]] to i16
; ALL-NEXT: ret i16 [[D]]
;
%B = sext i8 %A to i32
call void @use_i32(i32 %B)
%C = lshr i32 %B, 8
%D = trunc i32 %C to i16
ret i16 %D
}
define <2 x i16> @trunc_lshr_overshift_sext_narrow_input_uses2(<2 x i8> %A) {
; ALL-LABEL: @trunc_lshr_overshift_sext_narrow_input_uses2(
; ALL-NEXT: [[B:%.*]] = sext <2 x i8> [[A:%.*]] to <2 x i32>
; ALL-NEXT: [[C:%.*]] = lshr <2 x i32> [[B]], splat (i32 8)
; ALL-NEXT: call void @use_v2i32(<2 x i32> [[C]])
; ALL-NEXT: [[D:%.*]] = trunc <2 x i32> [[C]] to <2 x i16>
; ALL-NEXT: ret <2 x i16> [[D]]
;
%B = sext <2 x i8> %A to <2 x i32>
%C = lshr <2 x i32> %B, <i32 8, i32 8>
call void @use_v2i32(<2 x i32> %C)
%D = trunc <2 x i32> %C to <2 x i16>
ret <2 x i16> %D
}
define i16 @trunc_lshr_overshift_sext_narrow_input_uses3(i8 %A) {
; ALL-LABEL: @trunc_lshr_overshift_sext_narrow_input_uses3(
; ALL-NEXT: [[B:%.*]] = sext i8 [[A:%.*]] to i32
; ALL-NEXT: call void @use_i32(i32 [[B]])
; ALL-NEXT: [[C:%.*]] = lshr i32 [[B]], 8
; ALL-NEXT: call void @use_i32(i32 [[C]])
; ALL-NEXT: [[D:%.*]] = trunc i32 [[C]] to i16
; ALL-NEXT: ret i16 [[D]]
;
%B = sext i8 %A to i32
call void @use_i32(i32 %B)
%C = lshr i32 %B, 8
call void @use_i32(i32 %C)
%D = trunc i32 %C to i16
ret i16 %D
}
define <2 x i8> @trunc_lshr_overshift2_sext(<2 x i8> %A) {
; ALL-LABEL: @trunc_lshr_overshift2_sext(
; ALL-NEXT: [[B:%.*]] = sext <2 x i8> [[A:%.*]] to <2 x i32>
; ALL-NEXT: [[C:%.*]] = lshr <2 x i32> [[B]], splat (i32 25)
; ALL-NEXT: [[D:%.*]] = trunc nuw nsw <2 x i32> [[C]] to <2 x i8>
; ALL-NEXT: ret <2 x i8> [[D]]
;
%B = sext <2 x i8> %A to <2 x i32>
%C = lshr <2 x i32> %B, <i32 25, i32 25>
%D = trunc <2 x i32> %C to <2 x i8>
ret <2 x i8> %D
}
define i8 @trunc_lshr_overshift2_sext_uses1(i8 %A) {
; ALL-LABEL: @trunc_lshr_overshift2_sext_uses1(
; ALL-NEXT: [[B:%.*]] = sext i8 [[A:%.*]] to i32
; ALL-NEXT: call void @use_i32(i32 [[B]])
; ALL-NEXT: [[C:%.*]] = lshr i32 [[B]], 25
; ALL-NEXT: [[D:%.*]] = trunc nuw nsw i32 [[C]] to i8
; ALL-NEXT: ret i8 [[D]]
;
%B = sext i8 %A to i32
call void @use_i32(i32 %B)
%C = lshr i32 %B, 25
%D = trunc i32 %C to i8
ret i8 %D
}
define <2 x i8> @trunc_lshr_overshift2_sext_uses2(<2 x i8> %A) {
; ALL-LABEL: @trunc_lshr_overshift2_sext_uses2(
; ALL-NEXT: [[B:%.*]] = sext <2 x i8> [[A:%.*]] to <2 x i32>
; ALL-NEXT: [[C:%.*]] = lshr <2 x i32> [[B]], splat (i32 25)
; ALL-NEXT: call void @use_v2i32(<2 x i32> [[C]])
; ALL-NEXT: [[D:%.*]] = trunc nuw nsw <2 x i32> [[C]] to <2 x i8>
; ALL-NEXT: ret <2 x i8> [[D]]
;
%B = sext <2 x i8> %A to <2 x i32>
%C = lshr <2 x i32> %B, <i32 25, i32 25>
call void @use_v2i32(<2 x i32> %C)
%D = trunc <2 x i32> %C to <2 x i8>
ret <2 x i8> %D
}
define i8 @trunc_lshr_overshift2_sext_uses3(i8 %A) {
; ALL-LABEL: @trunc_lshr_overshift2_sext_uses3(
; ALL-NEXT: [[B:%.*]] = sext i8 [[A:%.*]] to i32
; ALL-NEXT: call void @use_i32(i32 [[B]])
; ALL-NEXT: [[C:%.*]] = lshr i32 [[B]], 25
; ALL-NEXT: call void @use_i32(i32 [[C]])
; ALL-NEXT: [[D:%.*]] = trunc nuw nsw i32 [[C]] to i8
; ALL-NEXT: ret i8 [[D]]
;
%B = sext i8 %A to i32
call void @use_i32(i32 %B)
%C = lshr i32 %B, 25
call void @use_i32(i32 %C)
%D = trunc i32 %C to i8
ret i8 %D
}
define i8 @trunc_lshr_zext(i8 %A) {
; ALL-LABEL: @trunc_lshr_zext(
; ALL-NEXT: [[TMP1:%.*]] = lshr i8 [[A:%.*]], 6
; ALL-NEXT: ret i8 [[TMP1]]
;
%B = zext i8 %A to i32
%C = lshr i32 %B, 6
%D = trunc i32 %C to i8
ret i8 %D
}
define i8 @trunc_lshr_zext_exact(i8 %A) {
; ALL-LABEL: @trunc_lshr_zext_exact(
; ALL-NEXT: [[TMP1:%.*]] = lshr i8 [[A:%.*]], 6
; ALL-NEXT: ret i8 [[TMP1]]
;
%B = zext i8 %A to i32
%C = lshr exact i32 %B, 6
%D = trunc i32 %C to i8
ret i8 %D
}
define <2 x i8> @trunc_lshr_zext_uniform(<2 x i8> %A) {
; ALL-LABEL: @trunc_lshr_zext_uniform(
; ALL-NEXT: [[TMP1:%.*]] = lshr <2 x i8> [[A:%.*]], splat (i8 6)
; ALL-NEXT: ret <2 x i8> [[TMP1]]
;
%B = zext <2 x i8> %A to <2 x i32>
%C = lshr <2 x i32> %B, <i32 6, i32 6>
%D = trunc <2 x i32> %C to <2 x i8>
ret <2 x i8> %D
}
define <2 x i8> @trunc_lshr_zext_uniform_poison(<2 x i8> %A) {
; ALL-LABEL: @trunc_lshr_zext_uniform_poison(
; ALL-NEXT: [[C:%.*]] = lshr <2 x i8> [[A:%.*]], <i8 6, i8 poison>
; ALL-NEXT: ret <2 x i8> [[C]]
;
%B = zext <2 x i8> %A to <2 x i32>
%C = lshr <2 x i32> %B, <i32 6, i32 poison>
%D = trunc <2 x i32> %C to <2 x i8>
ret <2 x i8> %D
}
define <2 x i8> @trunc_lshr_zext_nonuniform(<2 x i8> %A) {
; ALL-LABEL: @trunc_lshr_zext_nonuniform(
; ALL-NEXT: [[C:%.*]] = lshr <2 x i8> [[A:%.*]], <i8 6, i8 2>
; ALL-NEXT: ret <2 x i8> [[C]]
;
%B = zext <2 x i8> %A to <2 x i32>
%C = lshr <2 x i32> %B, <i32 6, i32 2>
%D = trunc <2 x i32> %C to <2 x i8>
ret <2 x i8> %D
}
define <3 x i8> @trunc_lshr_zext_nonuniform_poison(<3 x i8> %A) {
; ALL-LABEL: @trunc_lshr_zext_nonuniform_poison(
; ALL-NEXT: [[C:%.*]] = lshr <3 x i8> [[A:%.*]], <i8 6, i8 2, i8 poison>
; ALL-NEXT: ret <3 x i8> [[C]]
;
%B = zext <3 x i8> %A to <3 x i32>
%C = lshr <3 x i32> %B, <i32 6, i32 2, i32 poison>
%D = trunc <3 x i32> %C to <3 x i8>
ret <3 x i8> %D
}
define <2 x i8> @trunc_lshr_zext_uses1(<2 x i8> %A) {
; ALL-LABEL: @trunc_lshr_zext_uses1(
; ALL-NEXT: [[B:%.*]] = zext <2 x i8> [[A:%.*]] to <2 x i32>
; ALL-NEXT: call void @use_v2i32(<2 x i32> [[B]])
; ALL-NEXT: [[C:%.*]] = lshr <2 x i8> [[A]], splat (i8 6)
; ALL-NEXT: ret <2 x i8> [[C]]
;
%B = zext <2 x i8> %A to <2 x i32>
call void @use_v2i32(<2 x i32> %B)
%C = lshr <2 x i32> %B, <i32 6, i32 6>
%D = trunc <2 x i32> %C to <2 x i8>
ret <2 x i8> %D
}
define i8 @trunc_lshr_ext_halfWidth(i16 %a, i16 %b, i16 range(i16 0, 8) %shiftAmt) {
; ALL-LABEL: @trunc_lshr_ext_halfWidth(
; ALL-NEXT: [[ADD:%.*]] = add i16 [[A:%.*]], [[B:%.*]]
; ALL-NEXT: [[SHR:%.*]] = lshr i16 [[ADD]], [[SHIFTAMT:%.*]]
; ALL-NEXT: [[TRUNC:%.*]] = trunc i16 [[SHR]] to i8
; ALL-NEXT: ret i8 [[TRUNC]]
;
%zext_a = zext i16 %a to i32
%zext_b = zext i16 %b to i32
%zext_shiftAmt = zext i16 %shiftAmt to i32
%add = add nuw nsw i32 %zext_a, %zext_b
%shr = lshr i32 %add, %zext_shiftAmt
%trunc = trunc i32 %shr to i8
ret i8 %trunc
}
define i8 @trunc_lshr_ext_halfWidth_rhsOutofRange_neg(i16 %a, i16 %b, i16 range(i16 0, 10) %shiftAmt) {
; ALL-LABEL: @trunc_lshr_ext_halfWidth_rhsOutofRange_neg(
; ALL-NEXT: [[ZEXT_A:%.*]] = zext i16 [[A:%.*]] to i32
; ALL-NEXT: [[ZEXT_B:%.*]] = zext i16 [[B:%.*]] to i32
; ALL-NEXT: [[ZEXT_SHIFTAMT:%.*]] = zext nneg i16 [[SHIFTAMT:%.*]] to i32
; ALL-NEXT: [[ADD:%.*]] = add nuw nsw i32 [[ZEXT_A]], [[ZEXT_B]]
; ALL-NEXT: [[SHR:%.*]] = lshr i32 [[ADD]], [[ZEXT_SHIFTAMT]]
; ALL-NEXT: [[TRUNC:%.*]] = trunc i32 [[SHR]] to i8
; ALL-NEXT: ret i8 [[TRUNC]]
;
%zext_a = zext i16 %a to i32
%zext_b = zext i16 %b to i32
%zext_shiftAmt = zext i16 %shiftAmt to i32
%add = add nuw nsw i32 %zext_a, %zext_b
%shr = lshr i32 %add, %zext_shiftAmt
%trunc = trunc i32 %shr to i8
ret i8 %trunc
}
define i8 @trunc_lshr_ext_halfWidth_rhsNoRange_neg(i16 %a, i16 %b, i16 %shiftAmt) {
; ALL-LABEL: @trunc_lshr_ext_halfWidth_rhsNoRange_neg(
; ALL-NEXT: [[ZEXT_A:%.*]] = zext i16 [[A:%.*]] to i32
; ALL-NEXT: [[ZEXT_B:%.*]] = zext i16 [[B:%.*]] to i32
; ALL-NEXT: [[ZEXT_SHIFTAMT:%.*]] = zext nneg i16 [[SHIFTAMT:%.*]] to i32
; ALL-NEXT: [[ADD:%.*]] = add nuw nsw i32 [[ZEXT_A]], [[ZEXT_B]]
; ALL-NEXT: [[SHR:%.*]] = lshr i32 [[ADD]], [[ZEXT_SHIFTAMT]]
; ALL-NEXT: [[TRUNC:%.*]] = trunc i32 [[SHR]] to i8
; ALL-NEXT: ret i8 [[TRUNC]]
;
%zext_a = zext i16 %a to i32
%zext_b = zext i16 %b to i32
%zext_shiftAmt = zext i16 %shiftAmt to i32
%add = add nuw nsw i32 %zext_a, %zext_b
%shr = lshr i32 %add, %zext_shiftAmt
%trunc = trunc i32 %shr to i8
ret i8 %trunc
}
define i8 @trunc_lshr_ext_halfWidth_twouse_neg1(i16 %a, i16 %b, i16 range(i16 0, 8) %shiftAmt) {
; ALL-LABEL: @trunc_lshr_ext_halfWidth_twouse_neg1(
; ALL-NEXT: [[ZEXT_A:%.*]] = zext i16 [[A:%.*]] to i32
; ALL-NEXT: [[ZEXT_B:%.*]] = zext i16 [[B:%.*]] to i32
; ALL-NEXT: [[ZEXT_SHIFTAMT:%.*]] = zext nneg i16 [[SHIFTAMT:%.*]] to i32
; ALL-NEXT: [[ADD:%.*]] = add nuw nsw i32 [[ZEXT_A]], [[ZEXT_B]]
; ALL-NEXT: call void @use_i32(i32 [[ADD]])
; ALL-NEXT: [[SHR:%.*]] = lshr i32 [[ADD]], [[ZEXT_SHIFTAMT]]
; ALL-NEXT: [[TRUNC:%.*]] = trunc i32 [[SHR]] to i8
; ALL-NEXT: ret i8 [[TRUNC]]
;
%zext_a = zext i16 %a to i32
%zext_b = zext i16 %b to i32
%zext_shiftAmt = zext i16 %shiftAmt to i32
%add = add nuw nsw i32 %zext_a, %zext_b
call void @use_i32(i32 %add)
%shr = lshr i32 %add, %zext_shiftAmt
%trunc = trunc i32 %shr to i8
ret i8 %trunc
}
define i8 @trunc_lshr_ext_halfWidth_twouse_neg2(i16 %a, i16 %b, i16 range(i16 0, 8) %shiftAmt) {
; ALL-LABEL: @trunc_lshr_ext_halfWidth_twouse_neg2(
; ALL-NEXT: [[ZEXT_A:%.*]] = zext i16 [[A:%.*]] to i32
; ALL-NEXT: [[ZEXT_B:%.*]] = zext i16 [[B:%.*]] to i32
; ALL-NEXT: [[ZEXT_SHIFTAMT:%.*]] = zext nneg i16 [[SHIFTAMT:%.*]] to i32
; ALL-NEXT: [[ADD:%.*]] = add nuw nsw i32 [[ZEXT_A]], [[ZEXT_B]]
; ALL-NEXT: [[SHR:%.*]] = lshr i32 [[ADD]], [[ZEXT_SHIFTAMT]]
; ALL-NEXT: call void @use_i32(i32 [[SHR]])
; ALL-NEXT: [[TRUNC:%.*]] = trunc i32 [[SHR]] to i8
; ALL-NEXT: ret i8 [[TRUNC]]
;
%zext_a = zext i16 %a to i32
%zext_b = zext i16 %b to i32
%zext_shiftAmt = zext i16 %shiftAmt to i32
%add = add nuw nsw i32 %zext_a, %zext_b
%shr = lshr i32 %add, %zext_shiftAmt
call void @use_i32(i32 %shr)
%trunc = trunc i32 %shr to i8
ret i8 %trunc
}
; The narrowing transform only happens for integer types.
define <2 x i8> @trunc_lshr_ext_halfWidth_vector_neg(<2 x i16> %a, <2 x i16> %b) {
; ALL-LABEL: @trunc_lshr_ext_halfWidth_vector_neg(
; ALL-NEXT: [[ZEXT_A:%.*]] = zext <2 x i16> [[A:%.*]] to <2 x i32>
; ALL-NEXT: [[ZEXT_B:%.*]] = zext <2 x i16> [[B:%.*]] to <2 x i32>
; ALL-NEXT: [[ADD:%.*]] = add nuw nsw <2 x i32> [[ZEXT_A]], [[ZEXT_B]]
; ALL-NEXT: [[SHR:%.*]] = lshr <2 x i32> [[ADD]], splat (i32 6)
; ALL-NEXT: [[TRUNC:%.*]] = trunc <2 x i32> [[SHR]] to <2 x i8>
; ALL-NEXT: ret <2 x i8> [[TRUNC]]
;
%zext_a = zext <2 x i16> %a to <2 x i32>
%zext_b = zext <2 x i16> %b to <2 x i32>
%add = add nuw nsw <2 x i32> %zext_a, %zext_b
%shr = lshr <2 x i32> %add, <i32 6, i32 6>
%trunc = trunc <2 x i32> %shr to <2 x i8>
ret <2 x i8> %trunc
}
; The following four tests sext + lshr + trunc patterns.
; PR33078
define i8 @pr33078_1(i8 %A) {
; ALL-LABEL: @pr33078_1(
; ALL-NEXT: [[TMP1:%.*]] = ashr i8 [[A:%.*]], 7
; ALL-NEXT: ret i8 [[TMP1]]
;
%B = sext i8 %A to i16
%C = lshr i16 %B, 8
%D = trunc i16 %C to i8
ret i8 %D
}
define i12 @pr33078_2(i8 %A) {
; ALL-LABEL: @pr33078_2(
; ALL-NEXT: [[TMP1:%.*]] = ashr i8 [[A:%.*]], 4
; ALL-NEXT: [[D:%.*]] = sext i8 [[TMP1]] to i12
; ALL-NEXT: ret i12 [[D]]
;
%B = sext i8 %A to i16
%C = lshr i16 %B, 4
%D = trunc i16 %C to i12
ret i12 %D
}
define i4 @pr33078_3(i8 %A) {
; ALL-LABEL: @pr33078_3(
; ALL-NEXT: [[B:%.*]] = sext i8 [[A:%.*]] to i16
; ALL-NEXT: [[C:%.*]] = lshr i16 [[B]], 12
; ALL-NEXT: [[D:%.*]] = trunc nuw i16 [[C]] to i4
; ALL-NEXT: ret i4 [[D]]
;
%B = sext i8 %A to i16
%C = lshr i16 %B, 12
%D = trunc i16 %C to i4
ret i4 %D
}
define i8 @pr33078_4(i3 %x) {
; Don't turn this in an `ashr`. This was getting miscompiled
; ALL-LABEL: @pr33078_4(
; ALL-NEXT: [[B:%.*]] = sext i3 [[X:%.*]] to i16
; ALL-NEXT: [[C:%.*]] = lshr i16 [[B]], 13
; ALL-NEXT: [[D:%.*]] = trunc nuw nsw i16 [[C]] to i8
; ALL-NEXT: ret i8 [[D]]
;
%B = sext i3 %x to i16
%C = lshr i16 %B, 13
%D = trunc i16 %C to i8
ret i8 %D
}
; (sext (xor (cmp), -1)) -> (sext (!cmp))
define i64 @test94(i32 %a) {
; ALL-LABEL: @test94(
; ALL-NEXT: [[TMP1:%.*]] = icmp ne i32 [[A:%.*]], -2
; ALL-NEXT: [[TMP2:%.*]] = sext i1 [[TMP1]] to i64
; ALL-NEXT: ret i64 [[TMP2]]
;
%1 = icmp eq i32 %a, -2
%2 = sext i1 %1 to i8
%3 = xor i8 %2, -1
%4 = sext i8 %3 to i64
ret i64 %4
}
; We should be able to remove the zext and trunc here.
define i32 @test95(i32 %x) {
; ALL-LABEL: @test95(
; ALL-NEXT: [[TMP1:%.*]] = lshr i32 [[X:%.*]], 6
; ALL-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], 2
; ALL-NEXT: [[TMP3:%.*]] = or disjoint i32 [[TMP2]], 40
; ALL-NEXT: ret i32 [[TMP3]]
;
%1 = trunc i32 %x to i8
%2 = lshr i8 %1, 6
%3 = and i8 %2, 2
%4 = or i8 %3, 40
%5 = zext i8 %4 to i32
ret i32 %5
}
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