-; RUN: llvm-as < %s | llc -mtriple=i686-apple-darwin8 -mcpu=yonah -march=x86 > %t
-; RUN: grep fldl %t | wc -l | grep 1
-; RUN: not grep xmm %t &&
-; RUN: grep {sub.*esp} %t | wc -l | grep 1
+; RUN: llc < %s -mtriple=i686-apple-darwin8 -mcpu=yonah -march=x86 | FileCheck %s
; These testcases shouldn't require loading into an XMM register then storing
; to memory, then reloading into an FPStack reg.
+; CHECK: test1
+; CHECK: fldl
+; CHECK-NEXT: ret
define double @test1(double *%P) {
%A = load double* %P
ret double %A
}
-; fastcc should return a value
+; fastcc should return a value
+; CHECK: test2
+; CHECK-NOT: xmm
+; CHECK: ret
define fastcc double @test2(<2 x double> %A) {
%B = extractelement <2 x double> %A, i32 0
ret double %B
}
+; CHECK: test3
+; CHECK: sub{{.*}}%esp
+; CHECK-NOT: xmm
define fastcc double @test3(<4 x float> %A) {
%B = bitcast <4 x float> %A to <2 x double>
%C = call fastcc double @test2(<2 x double> %B)
ret double %C
}
-
+
+; Clear the stack when not using a return value.
+; CHECK: test4
+; CHECK: call
+; CHECK: fstp
+; CHECK: ret
+define void @test4(double *%P) {
+ %A = call double @test1(double *%P)
+ ret void
+}