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Diffstat (limited to 'test/Transforms/InstCombine/call-intrinsics.ll')
-rw-r--r-- | test/Transforms/InstCombine/call-intrinsics.ll | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/call-intrinsics.ll b/test/Transforms/InstCombine/call-intrinsics.ll new file mode 100644 index 0000000..e854998 --- /dev/null +++ b/test/Transforms/InstCombine/call-intrinsics.ll @@ -0,0 +1,17 @@ +; RUN: llvm-upgrade < %s | llvm-as | opt -instcombine | llvm-dis + +declare void %llvm.memmove.i32(sbyte*, sbyte*, uint, uint) +declare void %llvm.memcpy.i32(sbyte*, sbyte*, uint, uint) +declare void %llvm.memset.i32(sbyte*, ubyte, uint, uint) + +%X = global sbyte 0 +%Y = global sbyte 12 + +void %zero_byte_test() { + ; These process zero bytes, so they are a noop. + call void %llvm.memmove.i32(sbyte* %X, sbyte* %Y, uint 0, uint 100) + call void %llvm.memcpy.i32(sbyte* %X, sbyte* %Y, uint 0, uint 100) + call void %llvm.memset.i32(sbyte* %X, ubyte 123, uint 0, uint 100) + ret void +} + |