mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 04:02:41 +01:00
a62270de2c
The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
64 lines
1.9 KiB
LLVM
64 lines
1.9 KiB
LLVM
; RUN: opt -indvars -S < %s | FileCheck %s
|
|
|
|
define i32 @fn() {
|
|
entry:
|
|
ret i32 10
|
|
}
|
|
|
|
define i32 @test_nested2(i32 %tnr) {
|
|
; CHECK-LABEL: test_nested2
|
|
; CHECK-NOT: %indvars.iv
|
|
; CHECK: %i.0
|
|
|
|
; indvars should not replace the i.0 variable with a new one; SCEVExpander
|
|
; should determine that the old one is good to reuse.
|
|
|
|
entry:
|
|
%res = alloca i32, align 4
|
|
store volatile i32 0, i32* %res, align 4
|
|
%call = call i32 @fn()
|
|
br label %for.cond
|
|
|
|
for.cond: ; preds = %for.inc6, %entry
|
|
%i.0 = phi i32 [ 0, %entry ], [ %inc7, %for.inc6 ]
|
|
%cmp = icmp slt i32 %i.0, %call
|
|
br i1 %cmp, label %for.body, label %for.cond.cleanup
|
|
|
|
for.cond.cleanup: ; preds = %for.cond
|
|
br label %for.end8
|
|
|
|
for.body: ; preds = %for.cond
|
|
br label %for.cond1
|
|
|
|
for.cond1: ; preds = %for.inc, %for.body
|
|
%j.0 = phi i32 [ 0, %for.body ], [ %inc5, %for.inc ]
|
|
%cmp2 = icmp slt i32 %j.0, %i.0
|
|
br i1 %cmp2, label %for.body4, label %for.cond.cleanup3
|
|
|
|
for.cond.cleanup3: ; preds = %for.cond1
|
|
br label %for.end
|
|
|
|
for.body4: ; preds = %for.cond1
|
|
%0 = load volatile i32, i32* %res, align 4
|
|
%inc = add nsw i32 %0, 1
|
|
store volatile i32 %inc, i32* %res, align 4
|
|
br label %for.inc
|
|
|
|
for.inc: ; preds = %for.body4
|
|
%inc5 = add nsw i32 %j.0, 1
|
|
br label %for.cond1
|
|
|
|
for.end: ; preds = %for.cond.cleanup3
|
|
br label %for.inc6
|
|
|
|
for.inc6: ; preds = %for.end
|
|
%inc7 = add nsw i32 %i.0, 1
|
|
br label %for.cond
|
|
|
|
for.end8: ; preds = %for.cond.cleanup
|
|
%1 = load volatile i32, i32* %res, align 4
|
|
%cmp9 = icmp eq i32 %1, 45
|
|
%conv = zext i1 %cmp9 to i32
|
|
ret i32 %conv
|
|
}
|