1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 < %s | FileCheck %s
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
declare ptr @fn1(ptr returned)
define i32 @test1(i1 %B) {
; CHECK-LABEL: @test1(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[FOR_COND_US:%.*]]
; CHECK: for.cond.us:
; CHECK-NEXT: [[TMP0:%.*]] = xor i1 [[B:%.*]], true
; CHECK-NEXT: call void @llvm.assume(i1 [[TMP0]])
; CHECK-NEXT: br label [[FOR_COND_US]]
;
entry:
br label %for.cond.us
for.cond.us: ; preds = %for.cond.us, %entry
br i1 %B, label %for.cond4.preheader, label %for.cond.us
for.cond4.preheader: ; preds = %for.cond.us
br i1 %B, label %for.cond4.preheader.split.us, label %for.cond4
for.cond4.preheader.split.us: ; preds = %for.cond4.preheader
unreachable
for.cond4: ; preds = %for.end, %for.cond4.preheader
%phi = phi ptr [ %call, %for.end ], [ undef, %for.cond4.preheader ]
%call = call ptr @fn1(ptr %phi)
br label %for.cond5
for.cond5: ; preds = %for.cond5, %for.cond4
br i1 %B, label %for.cond5, label %for.end
for.end: ; preds = %for.cond5
%load = load i32, ptr %call, align 4
br label %for.cond4
}
|
