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Diffstat (limited to 'test/CodeGen/X86/shift-coalesce.ll')
| -rw-r--r-- | test/CodeGen/X86/shift-coalesce.ll | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/test/CodeGen/X86/shift-coalesce.ll b/test/CodeGen/X86/shift-coalesce.ll new file mode 100644 index 0000000..d38f9a8 --- /dev/null +++ b/test/CodeGen/X86/shift-coalesce.ll @@ -0,0 +1,15 @@ +; RUN: llc < %s -march=x86 -x86-asm-syntax=intel | \ +; RUN: grep {shld.*CL} +; RUN: llc < %s -march=x86 -x86-asm-syntax=intel | \ +; RUN: not grep {mov CL, BL} + +; PR687 + +define i64 @foo(i64 %x, i64* %X) { + %tmp.1 = load i64* %X ; <i64> [#uses=1] + %tmp.3 = trunc i64 %tmp.1 to i8 ; <i8> [#uses=1] + %shift.upgrd.1 = zext i8 %tmp.3 to i64 ; <i64> [#uses=1] + %tmp.4 = shl i64 %x, %shift.upgrd.1 ; <i64> [#uses=1] + ret i64 %tmp.4 +} + |