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| author | Stephen Hines <srhines@google.com> | 2015-03-23 12:10:34 -0700 |
|---|---|---|
| committer | Stephen Hines <srhines@google.com> | 2015-03-23 12:10:34 -0700 |
| commit | ebe69fe11e48d322045d5949c83283927a0d790b (patch) | |
| tree | c92f1907a6b8006628a4b01615f38264d29834ea /test/Analysis/ScalarEvolution/pr22179.ll | |
| parent | b7d2e72b02a4cb8034f32f8247a2558d2434e121 (diff) | |
| download | external_llvm-ebe69fe11e48d322045d5949c83283927a0d790b.zip external_llvm-ebe69fe11e48d322045d5949c83283927a0d790b.tar.gz external_llvm-ebe69fe11e48d322045d5949c83283927a0d790b.tar.bz2 | |
Update aosp/master LLVM for rebase to r230699.
Change-Id: I2b5be30509658cb8266be782de0ab24f9099f9b9
Diffstat (limited to 'test/Analysis/ScalarEvolution/pr22179.ll')
| -rw-r--r-- | test/Analysis/ScalarEvolution/pr22179.ll | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/test/Analysis/ScalarEvolution/pr22179.ll b/test/Analysis/ScalarEvolution/pr22179.ll new file mode 100644 index 0000000..d9fb510 --- /dev/null +++ b/test/Analysis/ScalarEvolution/pr22179.ll @@ -0,0 +1,28 @@ +; RUN: opt -analyze -scalar-evolution < %s | FileCheck %s + +%struct.anon = type { i8 } +%struct.S = type { i32 } + +@a = common global %struct.anon zeroinitializer, align 1 +@b = common global %struct.S zeroinitializer, align 4 + +; Function Attrs: nounwind ssp uwtable +define i32 @main() { +; CHECK-LABEL: Classifying expressions for: @main + store i8 0, i8* getelementptr inbounds (%struct.anon* @a, i64 0, i32 0), align 1 + br label %loop + +loop: + %storemerge1 = phi i8 [ 0, %0 ], [ %inc, %loop ] + %m = load volatile i32* getelementptr inbounds (%struct.S* @b, i64 0, i32 0), align 4 + %inc = add nuw i8 %storemerge1, 1 +; CHECK: %inc = add nuw i8 %storemerge1, 1 +; CHECK-NEXT: --> {1,+,1}<nuw><%loop> +; CHECK-NOT: --> {1,+,1}<nuw><nsw><%loop> + %exitcond = icmp eq i8 %inc, -128 + br i1 %exitcond, label %exit, label %loop + +exit: + store i8 -128, i8* getelementptr inbounds (%struct.anon* @a, i64 0, i32 0), align 1 + ret i32 0 +} |