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Diffstat (limited to 'test/Transforms/SimplifyLibCalls/MemCpy.ll')
| -rw-r--r-- | test/Transforms/SimplifyLibCalls/MemCpy.ll | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/test/Transforms/SimplifyLibCalls/MemCpy.ll b/test/Transforms/SimplifyLibCalls/MemCpy.ll new file mode 100644 index 0000000..0a99488 --- /dev/null +++ b/test/Transforms/SimplifyLibCalls/MemCpy.ll @@ -0,0 +1,22 @@ +; Test that the StrCatOptimizer works correctly +; RUN: llvm-upgrade < %s | llvm-as | opt -constprop -simplify-libcalls | \ +; RUN: llvm-dis | not grep {call.*llvm.memcpy.i32} + +declare void %llvm.memcpy.i32(sbyte*,sbyte*,uint,uint) +%h = constant [2 x sbyte] c"h\00" +%hel = constant [4 x sbyte] c"hel\00" +%hello_u = constant [8 x sbyte] c"hello_u\00" + +implementation ; Functions: + +int %main () { + %h_p = getelementptr [2 x sbyte]* %h, int 0, int 0 + %hel_p = getelementptr [4 x sbyte]* %hel, int 0, int 0 + %hello_u_p = getelementptr [8 x sbyte]* %hello_u, int 0, int 0 + %target = alloca [1024 x sbyte] + %target_p = getelementptr [1024 x sbyte]* %target, int 0, int 0 + call void %llvm.memcpy.i32(sbyte* %target_p, sbyte* %h_p, uint 2, uint 2) + call void %llvm.memcpy.i32(sbyte* %target_p, sbyte* %hel_p, uint 4, uint 4) + call void %llvm.memcpy.i32(sbyte* %target_p, sbyte* %hello_u_p, uint 8, uint 8) + ret int 0 +} |