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| author | Meador Inge <meadori@codesourcery.com> | 2012-11-11 05:54:34 +0000 |
|---|---|---|
| committer | Meador Inge <meadori@codesourcery.com> | 2012-11-11 05:54:34 +0000 |
| commit | 11b04b40f285c8dd2c9ae9b349c3877078eeee10 (patch) | |
| tree | 58e8b0f961837539a9b337cfcf277407798279a9 /test/Transforms/InstCombine/memcpy-2.ll | |
| parent | 955cf5326680bda17d6b8aa2dc9168927af8547f (diff) | |
| download | external_llvm-11b04b40f285c8dd2c9ae9b349c3877078eeee10.zip external_llvm-11b04b40f285c8dd2c9ae9b349c3877078eeee10.tar.gz external_llvm-11b04b40f285c8dd2c9ae9b349c3877078eeee10.tar.bz2 | |
instcombine: Migrate memcpy optimizations
This patch migrates the memcpy optimizations from the simplify-libcalls
pass into the instcombine library call simplifier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167686 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/InstCombine/memcpy-2.ll')
| -rw-r--r-- | test/Transforms/InstCombine/memcpy-2.ll | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/memcpy-2.ll b/test/Transforms/InstCombine/memcpy-2.ll new file mode 100644 index 0000000..4a8a020 --- /dev/null +++ b/test/Transforms/InstCombine/memcpy-2.ll @@ -0,0 +1,17 @@ +; Test that the memcpy library call simplifier works correctly. +; +; RUN: opt < %s -instcombine -S | FileCheck %s + +target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" + +declare i8 @memcpy(i8*, i8*, i32) + +; Check that memcpy functions with the wrong prototype aren't simplified. + +define i8 @test_no_simplify1(i8* %mem1, i8* %mem2, i32 %size) { +; CHECK: @test_no_simplify1 + %ret = call i8 @memcpy(i8* %mem1, i8* %mem2, i32 %size) +; CHECK: call i8 @memcpy + ret i8 %ret +; CHECK: ret i8 %ret +} |