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1b56b4e5ab
As the comment already indicates, performing an operation with nnan/ninf flags on a nan/inf or undef results in poison. Now that we have a proper poison value, we no longer need to relax it to undef.
301 lines
6.5 KiB
LLVM
301 lines
6.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -instsimplify -S | FileCheck %s
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; TODO: the instructions with poison operands should return poison
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define float @fadd_undef_op0(float %x) {
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; CHECK-LABEL: @fadd_undef_op0(
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; CHECK-NEXT: ret float 0x7FF8000000000000
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;
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%r = fadd float undef, %x
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ret float %r
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}
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define float @fadd_poison_op0(float %x) {
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; CHECK-LABEL: @fadd_poison_op0(
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; CHECK-NEXT: ret float 0x7FF8000000000000
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;
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%r = fadd float poison, %x
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ret float %r
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}
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define float @fadd_undef_op1(float %x) {
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; CHECK-LABEL: @fadd_undef_op1(
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; CHECK-NEXT: ret float 0x7FF8000000000000
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;
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%r = fadd float %x, undef
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ret float %r
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}
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define float @fadd_poison_op1(float %x) {
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; CHECK-LABEL: @fadd_poison_op1(
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; CHECK-NEXT: ret float 0x7FF8000000000000
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;
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%r = fadd float %x, poison
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ret float %r
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}
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define float @fsub_undef_op0(float %x) {
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; CHECK-LABEL: @fsub_undef_op0(
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; CHECK-NEXT: ret float 0x7FF8000000000000
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;
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%r = fsub float undef, %x
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ret float %r
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}
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define float @fsub_poison_op0(float %x) {
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; CHECK-LABEL: @fsub_poison_op0(
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; CHECK-NEXT: ret float 0x7FF8000000000000
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;
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%r = fsub float poison, %x
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ret float %r
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}
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define float @fsub_undef_op1(float %x) {
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; CHECK-LABEL: @fsub_undef_op1(
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; CHECK-NEXT: ret float 0x7FF8000000000000
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;
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%r = fsub float %x, undef
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ret float %r
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}
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define float @fsub_poison_op1(float %x) {
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; CHECK-LABEL: @fsub_poison_op1(
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; CHECK-NEXT: ret float 0x7FF8000000000000
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;
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%r = fsub float %x, poison
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ret float %r
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}
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define float @fmul_undef_op0(float %x) {
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; CHECK-LABEL: @fmul_undef_op0(
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; CHECK-NEXT: ret float 0x7FF8000000000000
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;
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%r = fmul float undef, %x
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ret float %r
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}
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define float @fmul_poison_op0(float %x) {
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; CHECK-LABEL: @fmul_poison_op0(
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; CHECK-NEXT: ret float 0x7FF8000000000000
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;
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%r = fmul float poison, %x
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ret float %r
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}
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define float @fmul_undef_op1(float %x) {
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; CHECK-LABEL: @fmul_undef_op1(
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; CHECK-NEXT: ret float 0x7FF8000000000000
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;
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%r = fmul float %x, undef
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ret float %r
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}
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define float @fmul_poison_op1(float %x) {
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; CHECK-LABEL: @fmul_poison_op1(
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; CHECK-NEXT: ret float 0x7FF8000000000000
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;
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%r = fmul float %x, poison
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ret float %r
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}
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define float @fdiv_undef_op0(float %x) {
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; CHECK-LABEL: @fdiv_undef_op0(
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; CHECK-NEXT: ret float 0x7FF8000000000000
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;
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%r = fdiv float undef, %x
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ret float %r
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}
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define float @fdiv_poison_op0(float %x) {
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; CHECK-LABEL: @fdiv_poison_op0(
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; CHECK-NEXT: ret float 0x7FF8000000000000
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;
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%r = fdiv float poison, %x
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ret float %r
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}
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define float @fdiv_undef_op1(float %x) {
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; CHECK-LABEL: @fdiv_undef_op1(
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; CHECK-NEXT: ret float 0x7FF8000000000000
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;
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%r = fdiv float %x, undef
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ret float %r
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}
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define float @fdiv_poison_op1(float %x) {
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; CHECK-LABEL: @fdiv_poison_op1(
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; CHECK-NEXT: ret float 0x7FF8000000000000
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;
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%r = fdiv float %x, poison
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ret float %r
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}
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define float @frem_undef_op0(float %x) {
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; CHECK-LABEL: @frem_undef_op0(
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; CHECK-NEXT: ret float 0x7FF8000000000000
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;
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%r = frem float undef, %x
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ret float %r
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}
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define float @frem_poison_op0(float %x) {
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; CHECK-LABEL: @frem_poison_op0(
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; CHECK-NEXT: ret float 0x7FF8000000000000
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;
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%r = frem float poison, %x
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ret float %r
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}
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define float @frem_undef_op1(float %x) {
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; CHECK-LABEL: @frem_undef_op1(
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; CHECK-NEXT: ret float 0x7FF8000000000000
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;
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%r = frem float %x, undef
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ret float %r
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}
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define float @frem_poison_op1(float %x) {
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; CHECK-LABEL: @frem_poison_op1(
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; CHECK-NEXT: ret float 0x7FF8000000000000
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;
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%r = frem float %x, poison
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ret float %r
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}
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; Repeat all tests with fast-math-flags. Alternate 'nnan' and 'fast' for more coverage.
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define float @fadd_undef_op0_nnan(float %x) {
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; CHECK-LABEL: @fadd_undef_op0_nnan(
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; CHECK-NEXT: ret float poison
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;
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%r = fadd nnan float undef, %x
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ret float %r
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}
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define float @fadd_undef_op1_fast(float %x) {
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; CHECK-LABEL: @fadd_undef_op1_fast(
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; CHECK-NEXT: ret float poison
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;
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%r = fadd fast float %x, undef
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ret float %r
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}
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define float @fsub_undef_op0_fast(float %x) {
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; CHECK-LABEL: @fsub_undef_op0_fast(
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; CHECK-NEXT: ret float poison
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;
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%r = fsub fast float undef, %x
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ret float %r
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}
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define float @fsub_undef_op1_nnan(float %x) {
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; CHECK-LABEL: @fsub_undef_op1_nnan(
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; CHECK-NEXT: ret float poison
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;
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%r = fsub nnan float %x, undef
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ret float %r
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}
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define float @fmul_undef_op0_nnan(float %x) {
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; CHECK-LABEL: @fmul_undef_op0_nnan(
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; CHECK-NEXT: ret float poison
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;
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%r = fmul nnan float undef, %x
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ret float %r
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}
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define float @fmul_undef_op1_fast(float %x) {
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; CHECK-LABEL: @fmul_undef_op1_fast(
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; CHECK-NEXT: ret float poison
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;
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%r = fmul fast float %x, undef
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ret float %r
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}
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define float @fdiv_undef_op0_fast(float %x) {
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; CHECK-LABEL: @fdiv_undef_op0_fast(
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; CHECK-NEXT: ret float poison
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;
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%r = fdiv fast float undef, %x
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ret float %r
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}
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define float @fdiv_undef_op1_nnan(float %x) {
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; CHECK-LABEL: @fdiv_undef_op1_nnan(
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; CHECK-NEXT: ret float poison
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;
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%r = fdiv nnan float %x, undef
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ret float %r
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}
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define float @frem_undef_op0_nnan(float %x) {
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; CHECK-LABEL: @frem_undef_op0_nnan(
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; CHECK-NEXT: ret float poison
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;
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%r = frem nnan float undef, %x
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ret float %r
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}
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define float @frem_undef_op1_fast(float %x) {
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; CHECK-LABEL: @frem_undef_op1_fast(
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; CHECK-NEXT: ret float poison
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;
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%r = frem fast float %x, undef
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ret float %r
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}
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define double @fdiv_ninf_nan_op0(double %x) {
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; CHECK-LABEL: @fdiv_ninf_nan_op0(
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; CHECK-NEXT: ret double 0xFFF8000000000000
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;
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%r = fdiv ninf double 0xfff8000000000000, %x
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ret double %r
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}
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define double @fadd_ninf_nan_op1(double %x) {
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; CHECK-LABEL: @fadd_ninf_nan_op1(
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; CHECK-NEXT: ret double 0x7FF8000000000000
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;
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%r = fadd ninf double %x, 0x7ff8000000000000
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ret double %r
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}
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define double @fdiv_ninf_inf_op0(double %x) {
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; CHECK-LABEL: @fdiv_ninf_inf_op0(
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; CHECK-NEXT: ret double poison
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;
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%r = fdiv ninf double 0x7ff0000000000000, %x
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ret double %r
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}
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define double @fadd_ninf_inf_op1(double %x) {
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; CHECK-LABEL: @fadd_ninf_inf_op1(
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; CHECK-NEXT: ret double poison
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;
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%r = fadd ninf double %x, 0xfff0000000000000
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ret double %r
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}
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; TODO: Should simplify to inf.
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define double @fsub_nnan_inf_op0(double %x) {
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; CHECK-LABEL: @fsub_nnan_inf_op0(
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; CHECK-NEXT: [[R:%.*]] = fsub nnan double 0x7FF0000000000000, [[X:%.*]]
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; CHECK-NEXT: ret double [[R]]
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;
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%r = fsub nnan double 0x7ff0000000000000, %x
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ret double %r
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}
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; TODO: Should simplify to -inf.
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define double @fmul_nnan_inf_op1(double %x) {
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; CHECK-LABEL: @fmul_nnan_inf_op1(
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; CHECK-NEXT: [[R:%.*]] = fmul nnan double [[X:%.*]], 0xFFF0000000000000
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; CHECK-NEXT: ret double [[R]]
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;
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%r = fmul nnan double %x, 0xfff0000000000000
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ret double %r
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}
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