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247 lines
6.5 KiB
LLVM
247 lines
6.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -constprop -S < %s | FileCheck %s
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; Fixes PR20832
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; Make sure that we correctly fold a fused multiply-add where operands
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; are all finite constants and addend is zero.
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declare double @llvm.fma.f64(double, double, double)
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define double @PR20832() {
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; CHECK-LABEL: @PR20832(
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; CHECK-NEXT: ret double 5.600000e+01
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;
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%1 = call double @llvm.fma.f64(double 7.0, double 8.0, double 0.0)
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ret double %1
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}
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; Test builtin fma with all finite non-zero constants.
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define double @test_all_finite() {
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; CHECK-LABEL: @test_all_finite(
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; CHECK-NEXT: ret double 6.100000e+01
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;
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%1 = call double @llvm.fma.f64(double 7.0, double 8.0, double 5.0)
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ret double %1
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}
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; Test builtin fma with a +/-NaN addend.
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define double @test_NaN_addend() {
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; CHECK-LABEL: @test_NaN_addend(
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; CHECK-NEXT: ret double 0x7FF8000000000000
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;
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%1 = call double @llvm.fma.f64(double 7.0, double 8.0, double 0x7FF8000000000000)
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ret double %1
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}
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define double @test_NaN_addend_2() {
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; CHECK-LABEL: @test_NaN_addend_2(
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; CHECK-NEXT: ret double 0xFFF8000000000000
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;
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%1 = call double @llvm.fma.f64(double 7.0, double 8.0, double 0xFFF8000000000000)
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ret double %1
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}
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; Test builtin fma with a +/-Inf addend.
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define double @test_Inf_addend() {
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; CHECK-LABEL: @test_Inf_addend(
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; CHECK-NEXT: ret double 0x7FF0000000000000
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;
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%1 = call double @llvm.fma.f64(double 7.0, double 8.0, double 0x7FF0000000000000)
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ret double %1
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}
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define double @test_Inf_addend_2() {
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; CHECK-LABEL: @test_Inf_addend_2(
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; CHECK-NEXT: ret double 0xFFF0000000000000
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;
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%1 = call double @llvm.fma.f64(double 7.0, double 8.0, double 0xFFF0000000000000)
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ret double %1
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}
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; Test builtin fma with one of the operands to the multiply being +/-NaN.
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define double @test_NaN_1() {
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; CHECK-LABEL: @test_NaN_1(
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; CHECK-NEXT: ret double 0x7FF8000000000000
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;
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%1 = call double @llvm.fma.f64(double 0x7FF8000000000000, double 8.0, double 0.0)
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ret double %1
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}
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define double @test_NaN_2() {
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; CHECK-LABEL: @test_NaN_2(
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; CHECK-NEXT: ret double 0x7FF8000000000000
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;
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%1 = call double @llvm.fma.f64(double 7.0, double 0x7FF8000000000000, double 0.0)
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ret double %1
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}
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define double @test_NaN_3() {
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; CHECK-LABEL: @test_NaN_3(
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; CHECK-NEXT: ret double 0xFFF8000000000000
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;
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%1 = call double @llvm.fma.f64(double 0xFFF8000000000000, double 8.0, double 0.0)
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ret double %1
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}
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define double @test_NaN_4() {
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; CHECK-LABEL: @test_NaN_4(
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; CHECK-NEXT: ret double 0xFFF8000000000000
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;
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%1 = call double @llvm.fma.f64(double 7.0, double 0xFFF8000000000000, double 0.0)
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ret double %1
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}
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; Test builtin fma with one of the operands to the multiply being +/-Inf.
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define double @test_Inf_1() {
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; CHECK-LABEL: @test_Inf_1(
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; CHECK-NEXT: ret double 0x7FF0000000000000
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;
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%1 = call double @llvm.fma.f64(double 0x7FF0000000000000, double 8.0, double 0.0)
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ret double %1
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}
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define double @test_Inf_2() {
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; CHECK-LABEL: @test_Inf_2(
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; CHECK-NEXT: ret double 0x7FF0000000000000
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;
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%1 = call double @llvm.fma.f64(double 7.0, double 0x7FF0000000000000, double 0.0)
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ret double %1
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}
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define double @test_Inf_3() {
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; CHECK-LABEL: @test_Inf_3(
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; CHECK-NEXT: ret double 0xFFF0000000000000
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;
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%1 = call double @llvm.fma.f64(double 0xFFF0000000000000, double 8.0, double 0.0)
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ret double %1
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}
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define double @test_Inf_4() {
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; CHECK-LABEL: @test_Inf_4(
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; CHECK-NEXT: ret double 0xFFF0000000000000
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;
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%1 = call double @llvm.fma.f64(double 7.0, double 0xFFF0000000000000, double 0.0)
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ret double %1
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}
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; -inf + inf --> NaN
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define double @inf_product_opposite_inf_addend_1() {
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; CHECK-LABEL: @inf_product_opposite_inf_addend_1(
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; CHECK-NEXT: ret double 0x7FF8000000000000
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;
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%1 = call double @llvm.fma.f64(double 7.0, double 0xFFF0000000000000, double 0x7FF0000000000000)
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ret double %1
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}
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; inf + -inf --> NaN
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define double @inf_product_opposite_inf_addend_2() {
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; CHECK-LABEL: @inf_product_opposite_inf_addend_2(
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; CHECK-NEXT: ret double 0x7FF8000000000000
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;
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%1 = call double @llvm.fma.f64(double 7.0, double 0x7FF0000000000000, double 0xFFF0000000000000)
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ret double %1
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}
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; -inf + inf --> NaN
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define double @inf_product_opposite_inf_addend_3() {
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; CHECK-LABEL: @inf_product_opposite_inf_addend_3(
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; CHECK-NEXT: ret double 0x7FF8000000000000
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;
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%1 = call double @llvm.fma.f64(double 0xFFF0000000000000, double 42.0, double 0x7FF0000000000000)
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ret double %1
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}
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; inf + -inf --> NaN
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define double @inf_product_opposite_inf_addend_4() {
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; CHECK-LABEL: @inf_product_opposite_inf_addend_4(
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; CHECK-NEXT: ret double 0x7FF8000000000000
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;
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%1 = call double @llvm.fma.f64(double 0x7FF0000000000000, double 42.0, double 0xFFF0000000000000)
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ret double %1
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}
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; 0 * -inf --> NaN
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define double @inf_times_zero_1() {
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; CHECK-LABEL: @inf_times_zero_1(
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; CHECK-NEXT: ret double 0x7FF8000000000000
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;
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%1 = call double @llvm.fma.f64(double 0.0, double 0xFFF0000000000000, double 42.0)
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ret double %1
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}
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; 0 * inf --> NaN
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define double @inf_times_zero_2() {
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; CHECK-LABEL: @inf_times_zero_2(
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; CHECK-NEXT: ret double 0x7FF8000000000000
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;
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%1 = call double @llvm.fma.f64(double 0.0, double 0x7FF0000000000000, double 42.0)
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ret double %1
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}
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; -inf * 0 --> NaN
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define double @inf_times_zero_3() {
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; CHECK-LABEL: @inf_times_zero_3(
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; CHECK-NEXT: ret double 0x7FF8000000000000
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;
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%1 = call double @llvm.fma.f64(double 0xFFF0000000000000, double 0.0, double 42.0)
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ret double %1
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}
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; inf * 0 --> NaN
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define double @inf_times_zero_4() {
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; CHECK-LABEL: @inf_times_zero_4(
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; CHECK-NEXT: ret double 0x7FF8000000000000
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;
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%1 = call double @llvm.fma.f64(double 0x7FF0000000000000, double 0.0, double 42.0)
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ret double %1
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}
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; -0 * -inf --> NaN
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define double @inf_times_zero_5() {
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; CHECK-LABEL: @inf_times_zero_5(
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; CHECK-NEXT: ret double 0x7FF8000000000000
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;
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%1 = call double @llvm.fma.f64(double -0.0, double 0xFFF0000000000000, double 42.0)
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ret double %1
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}
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; -0 * inf --> NaN
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define double @inf_times_zero_6() {
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; CHECK-LABEL: @inf_times_zero_6(
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; CHECK-NEXT: ret double 0x7FF8000000000000
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;
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%1 = call double @llvm.fma.f64(double -0.0, double 0x7FF0000000000000, double 42.0)
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ret double %1
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}
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; -inf * -0 --> NaN
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define double @inf_times_zero_7() {
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; CHECK-LABEL: @inf_times_zero_7(
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; CHECK-NEXT: ret double 0x7FF8000000000000
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;
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%1 = call double @llvm.fma.f64(double 0xFFF0000000000000, double -0.0, double 42.0)
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ret double %1
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}
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; inf * -0 --> NaN
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define double @inf_times_zero_8() {
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; CHECK-LABEL: @inf_times_zero_8(
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; CHECK-NEXT: ret double 0x7FF8000000000000
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;
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%1 = call double @llvm.fma.f64(double 0x7FF0000000000000, double -0.0, double 42.0)
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ret double %1
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}
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