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| author | Eric Christopher <echristo@apple.com> | 2011-08-15 20:50:36 +0000 |
|---|---|---|
| committer | Eric Christopher <echristo@apple.com> | 2011-08-15 20:50:36 +0000 |
| commit | f000957aadaf1f273c97b1b9d4e4c6f26608c435 (patch) | |
| tree | 0d1d869484f6e7b696cfae41fd401736026034f4 /test/Transforms/IPConstantProp | |
| parent | 95d01b88987699efd2059f9969ba8a76422242c5 (diff) | |
| download | external_llvm-f000957aadaf1f273c97b1b9d4e4c6f26608c435.zip external_llvm-f000957aadaf1f273c97b1b9d4e4c6f26608c435.tar.gz external_llvm-f000957aadaf1f273c97b1b9d4e4c6f26608c435.tar.bz2 | |
Add an ipsccp test. Migrated from test/FrontendC++.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137646 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/IPConstantProp')
| -rw-r--r-- | test/Transforms/IPConstantProp/global.ll | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/test/Transforms/IPConstantProp/global.ll b/test/Transforms/IPConstantProp/global.ll new file mode 100644 index 0000000..6715293 --- /dev/null +++ b/test/Transforms/IPConstantProp/global.ll @@ -0,0 +1,26 @@ +; RUN: opt < %s -S -ipsccp | FileCheck %s + +@_ZL6test1g = internal global i32 42, align 4 + +define void @_Z7test1f1v() nounwind { +entry: + %tmp = load i32* @_ZL6test1g, align 4 + %cmp = icmp eq i32 %tmp, 0 + br i1 %cmp, label %if.then, label %if.end + +if.then: ; preds = %entry + store i32 0, i32* @_ZL6test1g, align 4 + br label %if.end + +if.end: ; preds = %if.then, %entry + ret void +} + +; CHECK: @_Z7test1f2v() +; CHECK: entry: +; CHECK-NEXT: ret i32 42 +define i32 @_Z7test1f2v() nounwind { +entry: + %tmp = load i32* @_ZL6test1g, align 4 + ret i32 %tmp +} |