341 lines
12 KiB
LLVM
341 lines
12 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt -passes=constraint-elimination -S %s | FileCheck %s
|
|
|
|
target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
|
|
|
|
declare void @use(ptr)
|
|
declare i1 @cond()
|
|
|
|
define void @test_monotonic_ptr_iv_inc_1_different_element_types_1_chain_of_2_exit_condition_unrelated_condition_in_header(ptr %start, i16 %len, i16 %x) {
|
|
; CHECK-LABEL: @test_monotonic_ptr_iv_inc_1_different_element_types_1_chain_of_2_exit_condition_unrelated_condition_in_header(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds i32, ptr [[START:%.*]], i16 [[LEN:%.*]]
|
|
; CHECK-NEXT: [[LEN_NEG:%.*]] = icmp slt i16 [[LEN]], 0
|
|
; CHECK-NEXT: br i1 [[LEN_NEG]], label [[EXIT:%.*]], label [[LOOP_PH:%.*]]
|
|
; CHECK: loop.ph:
|
|
; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
|
|
; CHECK: loop.header:
|
|
; CHECK-NEXT: [[PTR_IV:%.*]] = phi ptr [ [[START]], [[LOOP_PH]] ], [ [[PTR_IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
|
|
; CHECK-NEXT: [[C_0:%.*]] = icmp eq i16 [[X:%.*]], 1
|
|
; CHECK-NEXT: br i1 [[C_0]], label [[EXIT]], label [[THEN:%.*]]
|
|
; CHECK: then:
|
|
; CHECK-NEXT: [[C_1:%.*]] = icmp eq ptr [[PTR_IV]], [[UPPER]]
|
|
; CHECK-NEXT: br i1 [[C_1]], label [[EXIT]], label [[FOR_BODY:%.*]]
|
|
; CHECK: for.body:
|
|
; CHECK-NEXT: [[C_2:%.*]] = call i1 @cond()
|
|
; CHECK-NEXT: br i1 [[C_2]], label [[LOOP_NEXT:%.*]], label [[EXIT]]
|
|
; CHECK: loop.next:
|
|
; CHECK-NEXT: [[T_1:%.*]] = icmp uge ptr [[PTR_IV]], [[START]]
|
|
; CHECK-NEXT: [[T_2:%.*]] = icmp ult ptr [[PTR_IV]], [[UPPER]]
|
|
; CHECK-NEXT: [[AND:%.*]] = and i1 [[T_1]], [[T_2]]
|
|
; CHECK-NEXT: br i1 [[AND]], label [[LOOP_LATCH]], label [[EXIT]]
|
|
; CHECK: loop.latch:
|
|
; CHECK-NEXT: call void @use(ptr [[PTR_IV]])
|
|
; CHECK-NEXT: [[PTR_IV_NEXT]] = getelementptr inbounds i8, ptr [[PTR_IV]], i16 1
|
|
; CHECK-NEXT: br label [[LOOP_HEADER]]
|
|
; CHECK: exit:
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
entry:
|
|
%upper = getelementptr inbounds i32, ptr %start, i16 %len
|
|
%len.neg = icmp slt i16 %len, 0
|
|
br i1 %len.neg, label %exit, label %loop.ph
|
|
|
|
loop.ph:
|
|
br label %loop.header
|
|
|
|
loop.header:
|
|
%ptr.iv = phi ptr [ %start, %loop.ph ], [ %ptr.iv.next, %loop.latch ]
|
|
%c.0 = icmp eq i16 %x, 1
|
|
br i1 %c.0, label %exit, label %then
|
|
|
|
then:
|
|
%c.1 = icmp eq ptr %ptr.iv, %upper
|
|
br i1 %c.1, label %exit, label %for.body
|
|
|
|
for.body:
|
|
%c.2 = call i1 @cond()
|
|
br i1 %c.2, label %loop.next, label %exit
|
|
|
|
loop.next:
|
|
%t.1 = icmp uge ptr %ptr.iv, %start
|
|
%t.2 = icmp ult ptr %ptr.iv, %upper
|
|
%and = and i1 %t.1, %t.2
|
|
br i1 %and, label %loop.latch, label %exit
|
|
|
|
loop.latch:
|
|
call void @use(ptr %ptr.iv)
|
|
%ptr.iv.next = getelementptr inbounds i8, ptr %ptr.iv, i16 1
|
|
br label %loop.header
|
|
|
|
exit:
|
|
ret void
|
|
}
|
|
|
|
define void @test_monotonic_ptr_iv_inc_1_different_element_types_1_chain_of_3_exit_condition_unrelated_condition_in_header(ptr %start, i16 %len, i16 %x) {
|
|
; CHECK-LABEL: @test_monotonic_ptr_iv_inc_1_different_element_types_1_chain_of_3_exit_condition_unrelated_condition_in_header(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds i32, ptr [[START:%.*]], i16 [[LEN:%.*]]
|
|
; CHECK-NEXT: [[LEN_NEG:%.*]] = icmp slt i16 [[LEN]], 0
|
|
; CHECK-NEXT: br i1 [[LEN_NEG]], label [[EXIT:%.*]], label [[LOOP_PH:%.*]]
|
|
; CHECK: loop.ph:
|
|
; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
|
|
; CHECK: loop.header:
|
|
; CHECK-NEXT: [[PTR_IV:%.*]] = phi ptr [ [[START]], [[LOOP_PH]] ], [ [[PTR_IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
|
|
; CHECK-NEXT: [[C_0:%.*]] = icmp eq i16 [[X:%.*]], 1
|
|
; CHECK-NEXT: br i1 [[C_0]], label [[EXIT]], label [[THEN_1:%.*]]
|
|
; CHECK: then.1:
|
|
; CHECK-NEXT: [[C_00:%.*]] = icmp ult i16 [[X]], 100
|
|
; CHECK-NEXT: br i1 [[C_0]], label [[EXIT]], label [[THEN_2:%.*]]
|
|
; CHECK: then.2:
|
|
; CHECK-NEXT: [[C_1:%.*]] = icmp eq ptr [[PTR_IV]], [[UPPER]]
|
|
; CHECK-NEXT: br i1 [[C_1]], label [[EXIT]], label [[FOR_BODY:%.*]]
|
|
; CHECK: for.body:
|
|
; CHECK-NEXT: [[C_2:%.*]] = call i1 @cond()
|
|
; CHECK-NEXT: br i1 [[C_2]], label [[LOOP_NEXT:%.*]], label [[EXIT]]
|
|
; CHECK: loop.next:
|
|
; CHECK-NEXT: [[T_1:%.*]] = icmp uge ptr [[PTR_IV]], [[START]]
|
|
; CHECK-NEXT: [[T_2:%.*]] = icmp ult ptr [[PTR_IV]], [[UPPER]]
|
|
; CHECK-NEXT: [[AND:%.*]] = and i1 [[T_1]], [[T_2]]
|
|
; CHECK-NEXT: br i1 [[AND]], label [[LOOP_LATCH]], label [[EXIT]]
|
|
; CHECK: loop.latch:
|
|
; CHECK-NEXT: call void @use(ptr [[PTR_IV]])
|
|
; CHECK-NEXT: [[PTR_IV_NEXT]] = getelementptr inbounds i8, ptr [[PTR_IV]], i16 1
|
|
; CHECK-NEXT: br label [[LOOP_HEADER]]
|
|
; CHECK: exit:
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
entry:
|
|
%upper = getelementptr inbounds i32, ptr %start, i16 %len
|
|
%len.neg = icmp slt i16 %len, 0
|
|
br i1 %len.neg, label %exit, label %loop.ph
|
|
|
|
loop.ph:
|
|
br label %loop.header
|
|
|
|
loop.header:
|
|
%ptr.iv = phi ptr [ %start, %loop.ph ], [ %ptr.iv.next, %loop.latch ]
|
|
%c.0 = icmp eq i16 %x, 1
|
|
br i1 %c.0, label %exit, label %then.1
|
|
|
|
then.1:
|
|
%c.00 = icmp ult i16 %x, 100
|
|
br i1 %c.0, label %exit, label %then.2
|
|
|
|
then.2:
|
|
%c.1 = icmp eq ptr %ptr.iv, %upper
|
|
br i1 %c.1, label %exit, label %for.body
|
|
|
|
for.body:
|
|
%c.2 = call i1 @cond()
|
|
br i1 %c.2, label %loop.next, label %exit
|
|
|
|
loop.next:
|
|
%t.1 = icmp uge ptr %ptr.iv, %start
|
|
%t.2 = icmp ult ptr %ptr.iv, %upper
|
|
%and = and i1 %t.1, %t.2
|
|
br i1 %and, label %loop.latch, label %exit
|
|
|
|
loop.latch:
|
|
call void @use(ptr %ptr.iv)
|
|
%ptr.iv.next = getelementptr inbounds i8, ptr %ptr.iv, i16 1
|
|
br label %loop.header
|
|
|
|
exit:
|
|
ret void
|
|
}
|
|
|
|
define void @test_monotonic_ptr_iv_inc_1_different_element_types_1_chain_of_2_exit_conditions_with_slt_in_header(ptr %start, i16 %len, i16 %x) {
|
|
; CHECK-LABEL: @test_monotonic_ptr_iv_inc_1_different_element_types_1_chain_of_2_exit_conditions_with_slt_in_header(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds i32, ptr [[START:%.*]], i16 [[LEN:%.*]]
|
|
; CHECK-NEXT: br label [[LOOP_PH:%.*]]
|
|
; CHECK: loop.ph:
|
|
; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
|
|
; CHECK: loop.header:
|
|
; CHECK-NEXT: [[PTR_IV:%.*]] = phi ptr [ [[START]], [[LOOP_PH]] ], [ [[PTR_IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
|
|
; CHECK-NEXT: [[LEN_NEG:%.*]] = icmp slt i16 [[LEN]], 0
|
|
; CHECK-NEXT: br i1 [[LEN_NEG]], label [[EXIT:%.*]], label [[THEN:%.*]]
|
|
; CHECK: then:
|
|
; CHECK-NEXT: [[C_1:%.*]] = icmp eq ptr [[PTR_IV]], [[UPPER]]
|
|
; CHECK-NEXT: br i1 [[C_1]], label [[EXIT]], label [[FOR_BODY:%.*]]
|
|
; CHECK: for.body:
|
|
; CHECK-NEXT: [[C_2:%.*]] = call i1 @cond()
|
|
; CHECK-NEXT: br i1 [[C_2]], label [[LOOP_NEXT:%.*]], label [[EXIT]]
|
|
; CHECK: loop.next:
|
|
; CHECK-NEXT: [[T_1:%.*]] = icmp uge ptr [[PTR_IV]], [[START]]
|
|
; CHECK-NEXT: [[T_2:%.*]] = icmp ult ptr [[PTR_IV]], [[UPPER]]
|
|
; CHECK-NEXT: [[AND:%.*]] = and i1 [[T_1]], [[T_2]]
|
|
; CHECK-NEXT: br i1 [[AND]], label [[LOOP_LATCH]], label [[EXIT]]
|
|
; CHECK: loop.latch:
|
|
; CHECK-NEXT: call void @use(ptr [[PTR_IV]])
|
|
; CHECK-NEXT: [[PTR_IV_NEXT]] = getelementptr inbounds i8, ptr [[PTR_IV]], i16 1
|
|
; CHECK-NEXT: br label [[LOOP_HEADER]]
|
|
; CHECK: exit:
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
entry:
|
|
%upper = getelementptr inbounds i32, ptr %start, i16 %len
|
|
br label %loop.ph
|
|
|
|
loop.ph:
|
|
br label %loop.header
|
|
|
|
loop.header:
|
|
%ptr.iv = phi ptr [ %start, %loop.ph ], [ %ptr.iv.next, %loop.latch ]
|
|
%len.neg = icmp slt i16 %len, 0
|
|
br i1 %len.neg, label %exit, label %then
|
|
|
|
then:
|
|
%c.1 = icmp eq ptr %ptr.iv, %upper
|
|
br i1 %c.1, label %exit, label %for.body
|
|
|
|
for.body:
|
|
%c.2 = call i1 @cond()
|
|
br i1 %c.2, label %loop.next, label %exit
|
|
|
|
loop.next:
|
|
%t.1 = icmp uge ptr %ptr.iv, %start
|
|
%t.2 = icmp ult ptr %ptr.iv, %upper
|
|
%and = and i1 %t.1, %t.2
|
|
br i1 %and, label %loop.latch, label %exit
|
|
|
|
loop.latch:
|
|
call void @use(ptr %ptr.iv)
|
|
%ptr.iv.next = getelementptr inbounds i8, ptr %ptr.iv, i16 1
|
|
br label %loop.header
|
|
|
|
exit:
|
|
ret void
|
|
}
|
|
|
|
define void @test_header_not_exiting(ptr %start, i16 %len, i16 %x) {
|
|
; CHECK-LABEL: @test_header_not_exiting(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds i32, ptr [[START:%.*]], i16 [[LEN:%.*]]
|
|
; CHECK-NEXT: br label [[LOOP_PH:%.*]]
|
|
; CHECK: loop.ph:
|
|
; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
|
|
; CHECK: loop.header:
|
|
; CHECK-NEXT: [[PTR_IV:%.*]] = phi ptr [ [[START]], [[LOOP_PH]] ], [ [[PTR_IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
|
|
; CHECK-NEXT: [[LEN_NEG:%.*]] = icmp slt i16 [[LEN]], 0
|
|
; CHECK-NEXT: br i1 [[LEN_NEG]], label [[THEN:%.*]], label [[FOR_BODY:%.*]]
|
|
; CHECK: then:
|
|
; CHECK-NEXT: [[C_1:%.*]] = icmp eq ptr [[PTR_IV]], [[UPPER]]
|
|
; CHECK-NEXT: br i1 [[C_1]], label [[EXIT:%.*]], label [[FOR_BODY]]
|
|
; CHECK: for.body:
|
|
; CHECK-NEXT: [[C_2:%.*]] = call i1 @cond()
|
|
; CHECK-NEXT: br i1 [[C_2]], label [[LOOP_NEXT:%.*]], label [[EXIT]]
|
|
; CHECK: loop.next:
|
|
; CHECK-NEXT: [[T_1:%.*]] = icmp uge ptr [[PTR_IV]], [[START]]
|
|
; CHECK-NEXT: [[T_2:%.*]] = icmp ult ptr [[PTR_IV]], [[UPPER]]
|
|
; CHECK-NEXT: [[AND:%.*]] = and i1 [[T_1]], [[T_2]]
|
|
; CHECK-NEXT: br i1 [[AND]], label [[LOOP_LATCH]], label [[EXIT]]
|
|
; CHECK: loop.latch:
|
|
; CHECK-NEXT: call void @use(ptr [[PTR_IV]])
|
|
; CHECK-NEXT: [[PTR_IV_NEXT]] = getelementptr inbounds i8, ptr [[PTR_IV]], i16 1
|
|
; CHECK-NEXT: br label [[LOOP_HEADER]]
|
|
; CHECK: exit:
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
entry:
|
|
%upper = getelementptr inbounds i32, ptr %start, i16 %len
|
|
br label %loop.ph
|
|
|
|
loop.ph:
|
|
br label %loop.header
|
|
|
|
loop.header:
|
|
%ptr.iv = phi ptr [ %start, %loop.ph ], [ %ptr.iv.next, %loop.latch ]
|
|
%len.neg = icmp slt i16 %len, 0
|
|
br i1 %len.neg, label %then, label %for.body
|
|
|
|
then:
|
|
%c.1 = icmp eq ptr %ptr.iv, %upper
|
|
br i1 %c.1, label %exit, label %for.body
|
|
|
|
for.body:
|
|
%c.2 = call i1 @cond()
|
|
br i1 %c.2, label %loop.next, label %exit
|
|
|
|
loop.next:
|
|
%t.1 = icmp uge ptr %ptr.iv, %start
|
|
%t.2 = icmp ult ptr %ptr.iv, %upper
|
|
%and = and i1 %t.1, %t.2
|
|
br i1 %and, label %loop.latch, label %exit
|
|
|
|
loop.latch:
|
|
call void @use(ptr %ptr.iv)
|
|
%ptr.iv.next = getelementptr inbounds i8, ptr %ptr.iv, i16 1
|
|
br label %loop.header
|
|
|
|
exit:
|
|
ret void
|
|
}
|
|
|
|
declare void @foo()
|
|
|
|
define i32 @test_latch_exiting1(i32 %N) {
|
|
; CHECK-LABEL: @test_latch_exiting1(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: br label [[LOOP:%.*]]
|
|
; CHECK: loop:
|
|
; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]
|
|
; CHECK-NEXT: call void @foo()
|
|
; CHECK-NEXT: [[IV_NEXT]] = add i32 [[IV]], 1
|
|
; CHECK-NEXT: [[EC:%.*]] = icmp eq i32 [[IV]], [[N:%.*]]
|
|
; CHECK-NEXT: br i1 [[EC]], label [[EXIT_1:%.*]], label [[LOOP]]
|
|
; CHECK: exit.1:
|
|
; CHECK-NEXT: ret i32 10
|
|
;
|
|
entry:
|
|
br label %loop
|
|
|
|
loop:
|
|
%iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ]
|
|
call void @foo()
|
|
%iv.next = add i32 %iv, 1
|
|
%ec = icmp eq i32 %iv, %N
|
|
br i1 %ec, label %exit.1, label %loop
|
|
|
|
exit.1:
|
|
ret i32 10
|
|
}
|
|
|
|
define i32 @test_latch_exiting2(i1 %c, i32 %N) {
|
|
; CHECK-LABEL: @test_latch_exiting2(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
|
|
; CHECK: loop.header:
|
|
; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
|
|
; CHECK-NEXT: br i1 [[C:%.*]], label [[LOOP_LATCH]], label [[EXIT_1:%.*]]
|
|
; CHECK: loop.latch:
|
|
; CHECK-NEXT: call void @foo()
|
|
; CHECK-NEXT: [[IV_NEXT]] = add i32 [[IV]], 1
|
|
; CHECK-NEXT: [[EC:%.*]] = icmp eq i32 [[IV]], [[N:%.*]]
|
|
; CHECK-NEXT: br i1 [[EC]], label [[EXIT_2:%.*]], label [[LOOP_HEADER]]
|
|
; CHECK: exit.1:
|
|
; CHECK-NEXT: ret i32 10
|
|
; CHECK: exit.2:
|
|
; CHECK-NEXT: ret i32 0
|
|
;
|
|
entry:
|
|
br label %loop.header
|
|
|
|
loop.header:
|
|
%iv = phi i32 [ 0, %entry ], [ %iv.next, %loop.latch ]
|
|
br i1 %c, label %loop.latch, label %exit.1
|
|
|
|
loop.latch:
|
|
call void @foo()
|
|
%iv.next = add i32 %iv, 1
|
|
%ec = icmp eq i32 %iv, %N
|
|
br i1 %ec, label %exit.2, label %loop.header
|
|
|
|
exit.1:
|
|
ret i32 10
|
|
|
|
exit.2:
|
|
ret i32 0
|
|
}
|