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7ed143a4a1
Printing floating point number in decimal is inconvenient for humans. Verbose asm output will print out floating point values in comments, it helps. But in lots of cases, users still need additional work to covert the decimal back to hex or binary to check the bit patterns, especially when there are small precision difference. Hexadecimal form is one of the supported form in LLVM IR, and easier for debugging. This patch try to print all FP constant in hex form instead. Reviewed By: RKSimon Differential Revision: https://reviews.llvm.org/D73566
140 lines
4.6 KiB
LLVM
140 lines
4.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=x86_64-apple-macosx10.10.0 < %s | FileCheck %s
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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; The assertions are *enhanced* from update_test_checks.ll to include
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; the constant load values because those are important.
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; CHECK: [[SIGNMASK1:L.+]]:
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; CHECK-NEXT: .quad 0x8000000000000000 ## double -0
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; CHECK-NEXT: .quad 0x8000000000000000 ## double -0
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define double @mag_pos0_double(double %x) nounwind {
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; CHECK-LABEL: mag_pos0_double:
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; CHECK: ## %bb.0:
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; CHECK-NEXT: andps {{.*}}(%rip), %xmm0
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; CHECK-NEXT: retq
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%y = call double @copysign(double 0.0, double %x)
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ret double %y
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}
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; CHECK: [[SIGNMASK2:L.+]]:
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; CHECK-NEXT: .quad 0x8000000000000000 ## double -0
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define double @mag_neg0_double(double %x) nounwind {
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; CHECK-LABEL: mag_neg0_double:
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; CHECK: ## %bb.0:
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; CHECK-NEXT: movsd {{.*#+}} xmm1 = mem[0],zero
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; CHECK-NEXT: andps %xmm1, %xmm0
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; CHECK-NEXT: retq
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%y = call double @copysign(double -0.0, double %x)
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ret double %y
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}
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; CHECK: [[SIGNMASK3:L.+]]:
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; CHECK-NEXT: .quad 0x8000000000000000 ## double -0
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; CHECK-NEXT: .quad 0x8000000000000000 ## double -0
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; CHECK: [[ONE3:L.+]]:
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; CHECK-NEXT: .quad 0x3ff0000000000000 ## double 1
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define double @mag_pos1_double(double %x) nounwind {
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; CHECK-LABEL: mag_pos1_double:
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; CHECK: ## %bb.0:
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; CHECK-NEXT: andps {{.*}}(%rip), %xmm0
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; CHECK-NEXT: movsd {{.*#+}} xmm1 = mem[0],zero
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; CHECK-NEXT: orps %xmm1, %xmm0
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; CHECK-NEXT: retq
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%y = call double @copysign(double 1.0, double %x)
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ret double %y
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}
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; CHECK: [[SIGNMASK4:L.+]]:
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; CHECK-NEXT: .quad 0x8000000000000000 ## double -0
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; CHECK-NEXT: .quad 0x8000000000000000 ## double -0
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; CHECK: [[ONE4:L.+]]:
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; CHECK-NEXT: .quad 0x3ff0000000000000 ## double 1
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; CHECK-NEXT: .quad 0x3ff0000000000000 ## double 1
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define double @mag_neg1_double(double %x) nounwind {
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; CHECK-LABEL: mag_neg1_double:
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; CHECK: ## %bb.0:
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; CHECK-NEXT: andps {{.*}}(%rip), %xmm0
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; CHECK-NEXT: orps {{.*}}(%rip), %xmm0
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; CHECK-NEXT: retq
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%y = call double @copysign(double -1.0, double %x)
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ret double %y
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}
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; CHECK: [[SIGNMASK5:L.+]]:
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; CHECK-NEXT: .long 0x80000000 ## float -0
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; CHECK-NEXT: .long 0x80000000 ## float -0
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; CHECK-NEXT: .long 0x80000000 ## float -0
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; CHECK-NEXT: .long 0x80000000 ## float -0
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define float @mag_pos0_float(float %x) nounwind {
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; CHECK-LABEL: mag_pos0_float:
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; CHECK: ## %bb.0:
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; CHECK-NEXT: andps {{.*}}(%rip), %xmm0
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; CHECK-NEXT: retq
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%y = call float @copysignf(float 0.0, float %x)
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ret float %y
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}
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; CHECK: [[SIGNMASK6:L.+]]:
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; CHECK-NEXT: .long 0x80000000 ## float -0
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define float @mag_neg0_float(float %x) nounwind {
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; CHECK-LABEL: mag_neg0_float:
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; CHECK: ## %bb.0:
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; CHECK-NEXT: movss {{.*#+}} xmm1 = mem[0],zero,zero,zero
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; CHECK-NEXT: andps %xmm1, %xmm0
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; CHECK-NEXT: retq
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%y = call float @copysignf(float -0.0, float %x)
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ret float %y
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}
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; CHECK: [[SIGNMASK7:L.+]]:
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; CHECK-NEXT: .long 0x80000000 ## float -0
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; CHECK-NEXT: .long 0x80000000 ## float -0
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; CHECK-NEXT: .long 0x80000000 ## float -0
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; CHECK-NEXT: .long 0x80000000 ## float -0
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; CHECK: [[ONE7:L.+]]:
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; CHECK-NEXT: .long 0x3f800000 ## float 1
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define float @mag_pos1_float(float %x) nounwind {
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; CHECK-LABEL: mag_pos1_float:
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; CHECK: ## %bb.0:
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; CHECK-NEXT: andps {{.*}}(%rip), %xmm0
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; CHECK-NEXT: movss {{.*#+}} xmm1 = mem[0],zero,zero,zero
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; CHECK-NEXT: orps %xmm1, %xmm0
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; CHECK-NEXT: retq
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%y = call float @copysignf(float 1.0, float %x)
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ret float %y
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}
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; CHECK: [[SIGNMASK8:L.+]]:
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; CHECK-NEXT: .long 0x80000000 ## float -0
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; CHECK-NEXT: .long 0x80000000 ## float -0
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; CHECK-NEXT: .long 0x80000000 ## float -0
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; CHECK-NEXT: .long 0x80000000 ## float -0
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; CHECK: [[ONE8:L.+]]:
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; CHECK-NEXT: .long 0x3f800000 ## float 1
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; CHECK-NEXT: .long 0x3f800000 ## float 1
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; CHECK-NEXT: .long 0x3f800000 ## float 1
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; CHECK-NEXT: .long 0x3f800000 ## float 1
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define float @mag_neg1_float(float %x) nounwind {
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; CHECK-LABEL: mag_neg1_float:
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; CHECK: ## %bb.0:
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; CHECK-NEXT: andps {{.*}}(%rip), %xmm0
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; CHECK-NEXT: orps {{.*}}(%rip), %xmm0
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; CHECK-NEXT: retq
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%y = call float @copysignf(float -1.0, float %x)
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ret float %y
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}
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declare double @copysign(double, double) nounwind readnone
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declare float @copysignf(float, float) nounwind readnone
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