add support for multiple return values in inline asm. This is a step
towards PR2094. It now compiles the attached .ll file to:
_sad16_sse2:
movslq %ecx, %rax
## InlineAsm Start
%ecx %rdx %rax %rax %r8d %rdx %rsi
## InlineAsm End
## InlineAsm Start
set %eax
## InlineAsm End
ret
which is pretty decent for a 3 output, 4 input asm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50386 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/X86/inline-asm-mrv.ll b/test/CodeGen/X86/inline-asm-mrv.ll
new file mode 100644
index 0000000..1d83a16
--- /dev/null
+++ b/test/CodeGen/X86/inline-asm-mrv.ll
@@ -0,0 +1,17 @@
+; PR2094
+; RUN: llvm-as < %s | llc -march=x86-64 | grep movslq
+; RUN: llvm-as < %s | llc -march=x86-64 | not grep movq
+
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
+target triple = "x86_64-apple-darwin8"
+
+define i32 @sad16_sse2(i8* %v, i8* %blk2, i8* %blk1, i32 %stride, i32 %h) nounwind {
+entry:
+ %tmp12 = sext i32 %stride to i64 ; <i64> [#uses=1]
+ %mrv = call {i32, i8*, i8*} asm sideeffect "$0 $1 $2 $3 $4 $5 $6",
+ "=r,=r,=r,r,r,r,r"( i64 %tmp12, i32 %h, i8* %blk1, i8* %blk2 ) nounwind
+ %tmp6 = getresult {i32, i8*, i8*} %mrv, 0
+ %tmp7 = call i32 asm sideeffect "set $0",
+ "=r,~{dirflag},~{fpsr},~{flags}"( ) nounwind
+ ret i32 %tmp7
+}