[X86][SSE] Added missing stack folding test for CVTSD2SS instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240241 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/stack-folding-fp-sse42.ll b/test/CodeGen/X86/stack-folding-fp-sse42.ll
index 95f0c3d3a188b28166690bdda619474440a51d95..63acf5f4f96f439fd58797be79aeb67536ba7ed8 100644 (file)
--- a/test/CodeGen/X86/stack-folding-fp-sse42.ll
+++ b/test/CodeGen/X86/stack-folding-fp-sse42.ll
@@ -314,7 +314,13 @@ define i64 @stack_fold_cvtsd2si64_int(<2 x double> %a0) {
 }
 declare i64 @llvm.x86.sse2.cvtsd2si64(<2 x double>) nounwind readnone
 
-; TODO stack_fold_cvtsd2ss
+define float @stack_fold_cvtsd2ss(double %a0) optsize {
+  ;CHECK-LABEL: stack_fold_cvtsd2ss
+  ;CHECK:       cvtsd2ss {{-?[0-9]*}}(%rsp), {{%xmm[0-9][0-9]*}} {{.*#+}} 8-byte Folded Reload
+  %1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm1},~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{flags}"()
+  %2 = fptrunc double %a0 to float
+  ret float %2
+}
 
 define <4 x float> @stack_fold_cvtsd2ss_int(<2 x double> %a0) optsize {
   ;CHECK-LABEL: stack_fold_cvtsd2ss_int