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llvm-project/llvm/test/Transforms/CorrelatedValuePropagation/non-null.ll
Bjorn Pettersson 8ebb3eac02 [test] Use -passes syntax when specifying pipeline in some more tests 
The legacy PM is deprecated, so update a bunch of lit tests running
opt to use the new PM syntax when specifying the pipeline.
In this patch focus has been put on test cases for ConstantMerge,
ConstraintElimination, CorrelatedValuePropagation, GlobalDCE,
GlobalOpt, SCCP, TailCallElim and PredicateInfo.

Differential Revision: https://reviews.llvm.org/D114516
2021-11-27 09:52:55 +01:00

348 lines
9.9 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=correlated-propagation -S | FileCheck %s
define void @test1(i8* %ptr) {
; CHECK-LABEL: @test1(
; CHECK-NEXT: [[A:%.*]] = load i8, i8* [[PTR:%.*]], align 1
; CHECK-NEXT: br label [[BB:%.*]]
; CHECK: bb:
; CHECK-NEXT: ret void
;
%A = load i8, i8* %ptr
br label %bb
bb:
icmp ne i8* %ptr, null
ret void
}
define void @test1_no_null_opt(i8* %ptr) #0 {
; CHECK-LABEL: @test1_no_null_opt(
; CHECK-NEXT: [[A:%.*]] = load i8, i8* [[PTR:%.*]], align 1
; CHECK-NEXT: br label [[BB:%.*]]
; CHECK: bb:
; CHECK-NEXT: [[TMP1:%.*]] = icmp ne i8* [[PTR]], null
; CHECK-NEXT: ret void
;
%A = load i8, i8* %ptr
br label %bb
bb:
icmp ne i8* %ptr, null
ret void
}
define void @test2(i8* %ptr) {
; CHECK-LABEL: @test2(
; CHECK-NEXT: store i8 0, i8* [[PTR:%.*]], align 1
; CHECK-NEXT: br label [[BB:%.*]]
; CHECK: bb:
; CHECK-NEXT: ret void
;
store i8 0, i8* %ptr
br label %bb
bb:
icmp ne i8* %ptr, null
ret void
}
define void @test2_no_null_opt(i8* %ptr) #0 {
; CHECK-LABEL: @test2_no_null_opt(
; CHECK-NEXT: store i8 0, i8* [[PTR:%.*]], align 1
; CHECK-NEXT: br label [[BB:%.*]]
; CHECK: bb:
; CHECK-NEXT: [[TMP1:%.*]] = icmp ne i8* [[PTR]], null
; CHECK-NEXT: ret void
;
store i8 0, i8* %ptr
br label %bb
bb:
icmp ne i8* %ptr, null
ret void
}
define void @test3() {
; CHECK-LABEL: @test3(
; CHECK-NEXT: [[PTR:%.*]] = alloca i8, align 1
; CHECK-NEXT: br label [[BB:%.*]]
; CHECK: bb:
; CHECK-NEXT: ret void
;
%ptr = alloca i8
br label %bb
bb:
icmp ne i8* %ptr, null
ret void
}
;; OK to remove icmp here since ptr is coming from alloca.
define void @test3_no_null_opt() #0 {
; CHECK-LABEL: @test3_no_null_opt(
; CHECK-NEXT: [[PTR:%.*]] = alloca i8, align 1
; CHECK-NEXT: br label [[BB:%.*]]
; CHECK: bb:
; CHECK-NEXT: ret void
;
%ptr = alloca i8
br label %bb
bb:
icmp ne i8* %ptr, null
ret void
}
declare void @llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i1)
define void @test4(i8* %dest, i8* %src) {
; CHECK-LABEL: @test4(
; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* [[DEST:%.*]], i8* [[SRC:%.*]], i32 1, i1 false)
; CHECK-NEXT: br label [[BB:%.*]]
; CHECK: bb:
; CHECK-NEXT: ret void
;
call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* %src, i32 1, i1 false)
br label %bb
bb:
icmp ne i8* %dest, null
icmp ne i8* %src, null
ret void
}
define void @test4_no_null_opt(i8* %dest, i8* %src) #0 {
; CHECK-LABEL: @test4_no_null_opt(
; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* [[DEST:%.*]], i8* [[SRC:%.*]], i32 1, i1 false)
; CHECK-NEXT: br label [[BB:%.*]]
; CHECK: bb:
; CHECK-NEXT: [[TMP1:%.*]] = icmp ne i8* [[DEST]], null
; CHECK-NEXT: [[TMP2:%.*]] = icmp ne i8* [[SRC]], null
; CHECK-NEXT: ret void
;
call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* %src, i32 1, i1 false)
br label %bb
bb:
icmp ne i8* %dest, null
icmp ne i8* %src, null
ret void
}
declare void @llvm.memmove.p0i8.p0i8.i32(i8*, i8*, i32, i1)
define void @test5(i8* %dest, i8* %src) {
; CHECK-LABEL: @test5(
; CHECK-NEXT: call void @llvm.memmove.p0i8.p0i8.i32(i8* [[DEST:%.*]], i8* [[SRC:%.*]], i32 1, i1 false)
; CHECK-NEXT: br label [[BB:%.*]]
; CHECK: bb:
; CHECK-NEXT: ret void
;
call void @llvm.memmove.p0i8.p0i8.i32(i8* %dest, i8* %src, i32 1, i1 false)
br label %bb
bb:
icmp ne i8* %dest, null
icmp ne i8* %src, null
ret void
}
define void @test5_no_null_opt(i8* %dest, i8* %src) #0 {
; CHECK-LABEL: @test5_no_null_opt(
; CHECK-NEXT: call void @llvm.memmove.p0i8.p0i8.i32(i8* [[DEST:%.*]], i8* [[SRC:%.*]], i32 1, i1 false)
; CHECK-NEXT: br label [[BB:%.*]]
; CHECK: bb:
; CHECK-NEXT: [[TMP1:%.*]] = icmp ne i8* [[DEST]], null
; CHECK-NEXT: [[TMP2:%.*]] = icmp ne i8* [[SRC]], null
; CHECK-NEXT: ret void
;
call void @llvm.memmove.p0i8.p0i8.i32(i8* %dest, i8* %src, i32 1, i1 false)
br label %bb
bb:
icmp ne i8* %dest, null
icmp ne i8* %src, null
ret void
}
declare void @llvm.memset.p0i8.i32(i8*, i8, i32, i1)
define void @test6(i8* %dest) {
; CHECK-LABEL: @test6(
; CHECK-NEXT: call void @llvm.memset.p0i8.i32(i8* [[DEST:%.*]], i8 -1, i32 1, i1 false)
; CHECK-NEXT: br label [[BB:%.*]]
; CHECK: bb:
; CHECK-NEXT: ret void
;
call void @llvm.memset.p0i8.i32(i8* %dest, i8 255, i32 1, i1 false)
br label %bb
bb:
icmp ne i8* %dest, null
ret void
}
define void @test6_no_null_opt(i8* %dest) #0 {
; CHECK-LABEL: @test6_no_null_opt(
; CHECK-NEXT: call void @llvm.memset.p0i8.i32(i8* [[DEST:%.*]], i8 -1, i32 1, i1 false)
; CHECK-NEXT: br label [[BB:%.*]]
; CHECK: bb:
; CHECK-NEXT: [[TMP1:%.*]] = icmp ne i8* [[DEST]], null
; CHECK-NEXT: ret void
;
call void @llvm.memset.p0i8.i32(i8* %dest, i8 255, i32 1, i1 false)
br label %bb
bb:
icmp ne i8* %dest, null
ret void
}
define void @test7(i8* %dest, i8* %src, i32 %len) {
; CHECK-LABEL: @test7(
; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* [[DEST:%.*]], i8* [[SRC:%.*]], i32 [[LEN:%.*]], i1 false)
; CHECK-NEXT: br label [[BB:%.*]]
; CHECK: bb:
; CHECK-NEXT: [[KEEP1:%.*]] = icmp ne i8* [[DEST]], null
; CHECK-NEXT: [[KEEP2:%.*]] = icmp ne i8* [[SRC]], null
; CHECK-NEXT: ret void
;
call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* %src, i32 %len, i1 false)
br label %bb
bb:
%KEEP1 = icmp ne i8* %dest, null
%KEEP2 = icmp ne i8* %src, null
ret void
}
declare void @llvm.memcpy.p1i8.p1i8.i32(i8 addrspace(1) *, i8 addrspace(1) *, i32, i1)
define void @test8(i8 addrspace(1) * %dest, i8 addrspace(1) * %src) {
; CHECK-LABEL: @test8(
; CHECK-NEXT: call void @llvm.memcpy.p1i8.p1i8.i32(i8 addrspace(1)* [[DEST:%.*]], i8 addrspace(1)* [[SRC:%.*]], i32 1, i1 false)
; CHECK-NEXT: br label [[BB:%.*]]
; CHECK: bb:
; CHECK-NEXT: [[KEEP1:%.*]] = icmp ne i8 addrspace(1)* [[DEST]], null
; CHECK-NEXT: [[KEEP2:%.*]] = icmp ne i8 addrspace(1)* [[SRC]], null
; CHECK-NEXT: ret void
;
call void @llvm.memcpy.p1i8.p1i8.i32(i8 addrspace(1) * %dest, i8 addrspace(1) * %src, i32 1, i1 false)
br label %bb
bb:
%KEEP1 = icmp ne i8 addrspace(1) * %dest, null
%KEEP2 = icmp ne i8 addrspace(1) * %src, null
ret void
}
define void @test9(i8* %dest, i8* %src) {
; CHECK-LABEL: @test9(
; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* [[DEST:%.*]], i8* [[SRC:%.*]], i32 1, i1 true)
; CHECK-NEXT: br label [[BB:%.*]]
; CHECK: bb:
; CHECK-NEXT: [[KEEP1:%.*]] = icmp ne i8* [[DEST]], null
; CHECK-NEXT: [[KEEP2:%.*]] = icmp ne i8* [[SRC]], null
; CHECK-NEXT: ret void
;
call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* %src, i32 1, i1 true)
br label %bb
bb:
%KEEP1 = icmp ne i8* %dest, null
%KEEP2 = icmp ne i8* %src, null
ret void
}
declare void @test10_helper(i8* %arg1, i8* %arg2, i32 %non-pointer-arg)
define void @test10(i8* %arg1, i8* %arg2, i32 %non-pointer-arg) {
; CHECK-LABEL: @test10(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[IS_NULL:%.*]] = icmp eq i8* [[ARG1:%.*]], null
; CHECK-NEXT: br i1 [[IS_NULL]], label [[NULL:%.*]], label [[NON_NULL:%.*]]
; CHECK: non_null:
; CHECK-NEXT: call void @test10_helper(i8* nonnull [[ARG1]], i8* [[ARG2:%.*]], i32 [[NON_POINTER_ARG:%.*]])
; CHECK-NEXT: br label [[NULL]]
; CHECK: null:
; CHECK-NEXT: call void @test10_helper(i8* [[ARG1]], i8* [[ARG2]], i32 [[NON_POINTER_ARG]])
; CHECK-NEXT: ret void
;
entry:
%is_null = icmp eq i8* %arg1, null
br i1 %is_null, label %null, label %non_null
non_null:
call void @test10_helper(i8* %arg1, i8* %arg2, i32 %non-pointer-arg)
br label %null
null:
call void @test10_helper(i8* %arg1, i8* %arg2, i32 %non-pointer-arg)
ret void
}
declare void @test11_helper(i8* %arg)
define void @test11(i8* %arg1, i8** %arg2) {
; CHECK-LABEL: @test11(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[IS_NULL:%.*]] = icmp eq i8* [[ARG1:%.*]], null
; CHECK-NEXT: br i1 [[IS_NULL]], label [[NULL:%.*]], label [[NON_NULL:%.*]]
; CHECK: non_null:
; CHECK-NEXT: br label [[MERGE:%.*]]
; CHECK: null:
; CHECK-NEXT: [[ANOTHER_ARG:%.*]] = alloca i8, align 1
; CHECK-NEXT: br label [[MERGE]]
; CHECK: merge:
; CHECK-NEXT: [[MERGED_ARG:%.*]] = phi i8* [ [[ANOTHER_ARG]], [[NULL]] ], [ [[ARG1]], [[NON_NULL]] ]
; CHECK-NEXT: call void @test11_helper(i8* nonnull [[MERGED_ARG]])
; CHECK-NEXT: ret void
;
entry:
%is_null = icmp eq i8* %arg1, null
br i1 %is_null, label %null, label %non_null
non_null:
br label %merge
null:
%another_arg = alloca i8
br label %merge
merge:
%merged_arg = phi i8* [%another_arg, %null], [%arg1, %non_null]
call void @test11_helper(i8* %merged_arg)
ret void
}
declare void @test12_helper(i8* %arg)
define void @test12(i8* %arg1, i8** %arg2) {
; CHECK-LABEL: @test12(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[IS_NULL:%.*]] = icmp eq i8* [[ARG1:%.*]], null
; CHECK-NEXT: br i1 [[IS_NULL]], label [[NULL:%.*]], label [[NON_NULL:%.*]]
; CHECK: non_null:
; CHECK-NEXT: br label [[MERGE:%.*]]
; CHECK: null:
; CHECK-NEXT: [[ANOTHER_ARG:%.*]] = load i8*, i8** [[ARG2:%.*]], align 8, !nonnull !0
; CHECK-NEXT: br label [[MERGE]]
; CHECK: merge:
; CHECK-NEXT: [[MERGED_ARG:%.*]] = phi i8* [ [[ANOTHER_ARG]], [[NULL]] ], [ [[ARG1]], [[NON_NULL]] ]
; CHECK-NEXT: call void @test12_helper(i8* nonnull [[MERGED_ARG]])
; CHECK-NEXT: ret void
;
entry:
%is_null = icmp eq i8* %arg1, null
br i1 %is_null, label %null, label %non_null
non_null:
br label %merge
null:
%another_arg = load i8*, i8** %arg2, !nonnull !{}
br label %merge
merge:
%merged_arg = phi i8* [%another_arg, %null], [%arg1, %non_null]
call void @test12_helper(i8* %merged_arg)
ret void
}
define i1 @test_store_same_block(i8* %arg) {
; CHECK-LABEL: @test_store_same_block(
; CHECK-NEXT: store i8 0, i8* [[ARG:%.*]], align 1
; CHECK-NEXT: [[CMP:%.*]] = icmp ne i8* [[ARG]], null
; CHECK-NEXT: ret i1 true
;
store i8 0, i8* %arg
%cmp = icmp ne i8* %arg, null
ret i1 %cmp
}
attributes #0 = { null_pointer_is_valid }
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