forked from OSchip/llvm-project
129 lines
3.8 KiB
LLVM
129 lines
3.8 KiB
LLVM
; Test copysign operations.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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declare float @copysignf(float, float) readnone
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declare double @copysign(double, double) readnone
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; FIXME: not really the correct prototype for SystemZ.
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declare fp128 @copysignl(fp128, fp128) readnone
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; Test f32 copies in which the sign comes from an f32.
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define float @f1(float %a, float %b) {
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; CHECK-LABEL: f1:
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; CHECK-NOT: %f2
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; CHECK: cpsdr %f0, %f2, %f0
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; CHECK: br %r14
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%res = call float @copysignf(float %a, float %b) readnone
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ret float %res
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}
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; Test f32 copies in which the sign comes from an f64.
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define float @f2(float %a, double %bd) {
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; CHECK-LABEL: f2:
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; CHECK-NOT: %f2
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; CHECK: cpsdr %f0, %f2, %f0
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; CHECK: br %r14
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%b = fptrunc double %bd to float
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%res = call float @copysignf(float %a, float %b) readnone
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ret float %res
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}
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; Test f32 copies in which the sign comes from an f128.
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define float @f3(float %a, fp128 *%bptr) {
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; CHECK-LABEL: f3:
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; CHECK: ld [[BHIGH:%f[0-7]]], 0(%r2)
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; CHECK: ld [[BLOW:%f[0-7]]], 8(%r2)
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; CHECK: cpsdr %f0, [[BHIGH]], %f0
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; CHECK: br %r14
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%bl = load volatile fp128, fp128 *%bptr
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%b = fptrunc fp128 %bl to float
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%res = call float @copysignf(float %a, float %b) readnone
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ret float %res
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}
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; Test f64 copies in which the sign comes from an f32.
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define double @f4(double %a, float %bf) {
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; CHECK-LABEL: f4:
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; CHECK-NOT: %f2
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; CHECK: cpsdr %f0, %f2, %f0
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; CHECK: br %r14
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%b = fpext float %bf to double
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%res = call double @copysign(double %a, double %b) readnone
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ret double %res
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}
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; Test f64 copies in which the sign comes from an f64.
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define double @f5(double %a, double %b) {
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; CHECK-LABEL: f5:
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; CHECK-NOT: %f2
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; CHECK: cpsdr %f0, %f2, %f0
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; CHECK: br %r14
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%res = call double @copysign(double %a, double %b) readnone
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ret double %res
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}
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; Test f64 copies in which the sign comes from an f128.
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define double @f6(double %a, fp128 *%bptr) {
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; CHECK-LABEL: f6:
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; CHECK: ld [[BHIGH:%f[0-7]]], 0(%r2)
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; CHECK: ld [[BLOW:%f[0-7]]], 8(%r2)
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; CHECK: cpsdr %f0, [[BHIGH]], %f0
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; CHECK: br %r14
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%bl = load volatile fp128, fp128 *%bptr
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%b = fptrunc fp128 %bl to double
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%res = call double @copysign(double %a, double %b) readnone
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ret double %res
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}
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; Test f128 copies in which the sign comes from an f32. We shouldn't
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; need any register shuffling here; %a should be tied to %c, with CPSDR
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; just changing the high register.
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define void @f7(fp128 *%cptr, fp128 *%aptr, float %bf) {
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; CHECK-LABEL: f7:
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; CHECK: ld [[AHIGH:%f[0-7]]], 0(%r3)
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; CHECK: ld [[ALOW:%f[0-7]]], 8(%r3)
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; CHECK: cpsdr [[AHIGH]], %f0, [[AHIGH]]
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; CHECK: std [[AHIGH]], 0(%r2)
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; CHECK: std [[ALOW]], 8(%r2)
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; CHECK: br %r14
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%a = load volatile fp128, fp128 *%aptr
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%b = fpext float %bf to fp128
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%c = call fp128 @copysignl(fp128 %a, fp128 %b) readnone
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store fp128 %c, fp128 *%cptr
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ret void
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}
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; As above, but the sign comes from an f64.
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define void @f8(fp128 *%cptr, fp128 *%aptr, double %bd) {
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; CHECK-LABEL: f8:
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; CHECK: ld [[AHIGH:%f[0-7]]], 0(%r3)
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; CHECK: ld [[ALOW:%f[0-7]]], 8(%r3)
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; CHECK: cpsdr [[AHIGH]], %f0, [[AHIGH]]
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; CHECK: std [[AHIGH]], 0(%r2)
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; CHECK: std [[ALOW]], 8(%r2)
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; CHECK: br %r14
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%a = load volatile fp128, fp128 *%aptr
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%b = fpext double %bd to fp128
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%c = call fp128 @copysignl(fp128 %a, fp128 %b) readnone
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store fp128 %c, fp128 *%cptr
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ret void
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}
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; As above, but the sign comes from an f128. Don't require the low part
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; of %b to be loaded, since it isn't used.
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define void @f9(fp128 *%cptr, fp128 *%aptr, fp128 *%bptr) {
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; CHECK-LABEL: f9:
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; CHECK: ld [[AHIGH:%f[0-7]]], 0(%r3)
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; CHECK: ld [[ALOW:%f[0-7]]], 8(%r3)
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; CHECK: ld [[BHIGH:%f[0-7]]], 0(%r4)
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; CHECK: cpsdr [[AHIGH]], [[BHIGH]], [[AHIGH]]
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; CHECK: std [[AHIGH]], 0(%r2)
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; CHECK: std [[ALOW]], 8(%r2)
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; CHECK: br %r14
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%a = load volatile fp128, fp128 *%aptr
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%b = load volatile fp128, fp128 *%bptr
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%c = call fp128 @copysignl(fp128 %a, fp128 %b) readnone
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store fp128 %c, fp128 *%cptr
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ret void
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}
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