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llvm-mirror/test/CodeGen/X86/mmx-copy-gprs.ll
Chris Lattner a64d4179d4 copy mmx values from/to memory with GPRs on x86-32
instead of with mmx registers.  This horribleness is apparently
done by gcc to avoid having to insert emms in places that really 
should have it.  This is the second half of rdar://5741668.

llvm-svn: 47474
2008-02-22 05:18:04 +00:00

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503 B
LLVM

; RUN: llvm-as < %s | llc -march=x86-64 | grep {movq.*(%rsi), %rax}
; RUN: llvm-as < %s | llc -march=x86 | grep {movl.*4(%eax),}
; This test should use GPRs to copy the mmx value, not MMX regs. Using mmx regs,
; increases the places that need to use emms.
; rdar://5741668
target triple = "x86_64-apple-darwin8"
define void @foo(<1 x i64>* %x, <1 x i64>* %y) nounwind {
entry:
%tmp1 = load <1 x i64>* %y, align 8 ; <<1 x i64>> [#uses=1]
store <1 x i64> %tmp1, <1 x i64>* %x, align 8
ret void
}