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55a0ce1776
Also and add a test for popping dead return values and avoid testing the spill precision. llvm-svn: 133997
41 lines
936 B
LLVM
41 lines
936 B
LLVM
; RUN: llc < %s -mtriple=i686-apple-darwin8 -mcpu=yonah -march=x86 | FileCheck %s
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; These testcases shouldn't require loading into an XMM register then storing
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; to memory, then reloading into an FPStack reg.
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; CHECK: test1
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; CHECK: fldl
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; CHECK-NEXT: ret
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define double @test1(double *%P) {
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%A = load double* %P
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ret double %A
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}
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; fastcc should return a value
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; CHECK: test2
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; CHECK-NOT: xmm
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; CHECK: ret
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define fastcc double @test2(<2 x double> %A) {
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%B = extractelement <2 x double> %A, i32 0
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ret double %B
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}
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; CHECK: test3
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; CHECK: sub{{.*}}%esp
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; CHECLK-NOT: xmm
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define fastcc double @test3(<4 x float> %A) {
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%B = bitcast <4 x float> %A to <2 x double>
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%C = call fastcc double @test2(<2 x double> %B)
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ret double %C
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}
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; Clear the stack when not using a return value.
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; CHECK: test4
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; CHECK: call
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; CHECK: fstp
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; CHECK: ret
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define void @test4(double *%P) {
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%A = call double @test1(double *%P)
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ret void
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}
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