diff options
Diffstat (limited to 'llvm/test/CodeGen/X86/memcpy-from-string.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/memcpy-from-string.ll | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/memcpy-from-string.ll b/llvm/test/CodeGen/X86/memcpy-from-string.ll new file mode 100644 index 00000000000..d62d9e20254 --- /dev/null +++ b/llvm/test/CodeGen/X86/memcpy-from-string.ll @@ -0,0 +1,24 @@ +; RUN: llc < %s -asm-verbose=false | FileCheck %s + +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-unknown-linux-gnu" + +%0 = type { %1, i64, %2 } +%1 = type { i8* } +%2 = type { i64, [8 x i8] } + +@0 = internal constant [10 x i8] c"asdf jkl;\00", align 1 + +; Memcpy lowering should emit stores of immediates containing string data from +; the correct offsets. + +; CHECK-LABEL: foo: +; CHECK: movb $0, 6(%rdi) +; CHECK: movw $15212, 4(%rdi) +; CHECK: movl $1802117222, (%rdi) +define void @foo(i8* %tmp2) { + call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp2, i8* getelementptr inbounds ([10 x i8], [10 x i8]* @0, i64 0, i64 3), i64 7, i32 1, i1 false) + ret void +} + +declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1) |
