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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=sse2 | FileCheck %s
; Ideally this would compile to 5 multiplies.
define double @pow_wrapper(double %a) nounwind readonly ssp noredzone {
; CHECK-LABEL: pow_wrapper:
; CHECK: # BB#0:
; CHECK-NEXT: movapd %xmm0, %xmm1
; CHECK-NEXT: mulsd %xmm1, %xmm1
; CHECK-NEXT: mulsd %xmm1, %xmm0
; CHECK-NEXT: mulsd %xmm1, %xmm1
; CHECK-NEXT: mulsd %xmm1, %xmm0
; CHECK-NEXT: mulsd %xmm1, %xmm1
; CHECK-NEXT: mulsd %xmm0, %xmm1
; CHECK-NEXT: movapd %xmm1, %xmm0
; CHECK-NEXT: retq
%ret = tail call double @llvm.powi.f64(double %a, i32 15) nounwind ; <double> [#uses=1]
ret double %ret
}
define double @pow_wrapper_optsize(double %a) optsize {
; CHECK-LABEL: pow_wrapper_optsize:
; CHECK: # BB#0:
; CHECK-NEXT: movl $15, %edi
; CHECK-NEXT: jmp
%ret = tail call double @llvm.powi.f64(double %a, i32 15) nounwind ; <double> [#uses=1]
ret double %ret
}
define double @pow_wrapper_minsize(double %a) minsize {
; CHECK-LABEL: pow_wrapper_minsize:
; CHECK: # BB#0:
; CHECK-NEXT: pushq $15
; CHECK: popq %rdi
; CHECK: jmp
%ret = tail call double @llvm.powi.f64(double %a, i32 15) nounwind ; <double> [#uses=1]
ret double %ret
}
declare double @llvm.powi.f64(double, i32) nounwind readonly
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