fix a missing shuffle pattern, PR9009. Patch by Artiom Myaskouvskey!

[oota-llvm.git] / test / CodeGen / X86 / inline-asm-fpstack2.ll

diff --git a/test/CodeGen/X86/inline-asm-fpstack2.ll b/test/CodeGen/X86/inline-asm-fpstack2.ll
index ffa6ee6e019ef2f0eefa6856b9c0a95d44141dde..78037e0423a59f43d937ee300b01f5ffdb9ab1d8 100644 (file)
--- a/test/CodeGen/X86/inline-asm-fpstack2.ll
+++ b/test/CodeGen/X86/inline-asm-fpstack2.ll
@@ -1,10 +1,21 @@
-; RUN: llc < %s -march=x86 > %t
-; RUN: grep {fld       %%st(0)} %t
+; RUN: llc < %s -march=x86 | FileCheck %s
 ; PR4185
 
+; Passing a non-killed value to asm in {st}.
+; Make sure it is duped before.
+; asm kills st(0), so we shouldn't pop anything
+; CHECK: fld %st(0)
+; CHECK: fistpl
+; CHECK-NOT: fstp
+; CHECK: fistpl
+; CHECK-NOT: fstp
+; CHECK: ret
 define void @test() {
 return:
        call void asm sideeffect "fistpl $0", "{st}"(double 1.000000e+06)
        call void asm sideeffect "fistpl $0", "{st}"(double 1.000000e+06)
        ret void
 }
+
+; A valid alternative would be to remat the constant pool load before each
+; inline asm.