[llvm] r216914 - Revert: [APFloat] Fixed a bug in method 'fusedMultiplyAdd'.
Hal Finkel
hfinkel at anl.gov
Mon Sep 15 21:50:42 PDT 2014
----- Original Message -----
> From: "Andrea Di Biagio" <Andrea_DiBiagio at sn.scee.net>
> To: llvm-commits at cs.uiuc.edu
> Sent: Tuesday, September 2, 2014 12:22:50 PM
> Subject: [llvm] r216914 - Revert: [APFloat] Fixed a bug in method 'fusedMultiplyAdd'.
>
> Author: adibiagio
> Date: Tue Sep 2 12:22:49 2014
> New Revision: 216914
>
> URL: http://llvm.org/viewvc/llvm-project?rev=216914&view=rev
> Log:
> Revert: [APFloat] Fixed a bug in method 'fusedMultiplyAdd'.
>
> This reverts revision 216913; the new test added at revision 216913
> caused regression failures on a couple of buildbots.
Did we ever figure this out?
-Hal
>
>
> Removed:
> llvm/trunk/test/Transforms/InstSimplify/fold-builtin-fma.ll
> Modified:
> llvm/trunk/lib/Support/APFloat.cpp
>
> Modified: llvm/trunk/lib/Support/APFloat.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Support/APFloat.cpp?rev=216914&r1=216913&r2=216914&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Support/APFloat.cpp (original)
> +++ llvm/trunk/lib/Support/APFloat.cpp Tue Sep 2 12:22:49 2014
> @@ -1801,7 +1801,7 @@ APFloat::fusedMultiplyAdd(const APFloat
> extended-precision calculation. */
> if (isFiniteNonZero() &&
> multiplicand.isFiniteNonZero() &&
> - addend.isFinite()) {
> + addend.isFiniteNonZero()) {
> lostFraction lost_fraction;
>
> lost_fraction = multiplySignificand(multiplicand, &addend);
>
> Removed: llvm/trunk/test/Transforms/InstSimplify/fold-builtin-fma.ll
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/InstSimplify/fold-builtin-fma.ll?rev=216913&view=auto
> ==============================================================================
> --- llvm/trunk/test/Transforms/InstSimplify/fold-builtin-fma.ll
> (original)
> +++ llvm/trunk/test/Transforms/InstSimplify/fold-builtin-fma.ll
> (removed)
> @@ -1,119 +0,0 @@
> -; RUN: opt -instsimplify -S < %s | FileCheck %s
> -
> -; Fixes PR20832
> -; Make sure that we correctly fold a fused multiply-add where
> operands
> -; are all finite constants and addend is zero.
> -
> -declare double @llvm.fma.f64(double, double, double)
> -
> -
> -define double @PR20832() {
> - %1 = call double @llvm.fma.f64(double 7.0, double 8.0, double 0.0)
> - ret double %1
> -}
> -; CHECK-LABEL: @PR20832(
> -; CHECK: ret double 5.600000e+01
> -
> -; Test builtin fma with all finite non-zero constants.
> -define double @test_all_finite() {
> - %1 = call double @llvm.fma.f64(double 7.0, double 8.0, double 5.0)
> - ret double %1
> -}
> -; CHECK-LABEL: @test_all_finite(
> -; CHECK: ret double 6.100000e+01
> -
> -; Test builtin fma with a +/-NaN addend.
> -define double @test_NaN_addend() {
> - %1 = call double @llvm.fma.f64(double 7.0, double 8.0, double
> 0x7FF8000000000000)
> - ret double %1
> -}
> -; CHECK-LABEL: @test_NaN_addend(
> -; CHECK: ret double 0x7FF8000000000000
> -
> -define double @test_NaN_addend_2() {
> - %1 = call double @llvm.fma.f64(double 7.0, double 8.0, double
> 0xFFF8000000000000)
> - ret double %1
> -}
> -; CHECK-LABEL: @test_NaN_addend_2(
> -; CHECK: ret double 0xFFF8000000000000
> -
> -; Test builtin fma with a +/-Inf addend.
> -define double @test_Inf_addend() {
> - %1 = call double @llvm.fma.f64(double 7.0, double 8.0, double
> 0x7FF0000000000000)
> - ret double %1
> -}
> -; CHECK-LABEL: @test_Inf_addend(
> -; CHECK: ret double 0x7FF0000000000000
> -
> -define double @test_Inf_addend_2() {
> - %1 = call double @llvm.fma.f64(double 7.0, double 8.0, double
> 0xFFF0000000000000)
> - ret double %1
> -}
> -; CHECK-LABEL: @test_Inf_addend_2(
> -; CHECK: ret double 0xFFF0000000000000
> -
> -; Test builtin fma with one of the operands to the multiply being
> +/-NaN.
> -define double @test_NaN_1() {
> - %1 = call double @llvm.fma.f64(double 0x7FF8000000000000, double
> 8.0, double 0.0)
> - ret double %1
> -}
> -; CHECK-LABEL: @test_NaN_1(
> -; CHECK: ret double 0x7FF8000000000000
> -
> -
> -define double @test_NaN_2() {
> - %1 = call double @llvm.fma.f64(double 7.0, double
> 0x7FF8000000000000, double 0.0)
> - ret double %1
> -}
> -; CHECK-LABEL: @test_NaN_2(
> -; CHECK: ret double 0x7FF8000000000000
> -
> -
> -define double @test_NaN_3() {
> - %1 = call double @llvm.fma.f64(double 0xFFF8000000000000, double
> 8.0, double 0.0)
> - ret double %1
> -}
> -; CHECK-LABEL: @test_NaN_3(
> -; CHECK: ret double 0x7FF8000000000000
> -
> -
> -define double @test_NaN_4() {
> - %1 = call double @llvm.fma.f64(double 7.0, double
> 0xFFF8000000000000, double 0.0)
> - ret double %1
> -}
> -; CHECK-LABEL: @test_NaN_4(
> -; CHECK: ret double 0x7FF8000000000000
> -
> -
> -; Test builtin fma with one of the operands to the multiply being
> +/-Inf.
> -define double @test_Inf_1() {
> - %1 = call double @llvm.fma.f64(double 0x7FF0000000000000, double
> 8.0, double 0.0)
> - ret double %1
> -}
> -; CHECK-LABEL: @test_Inf_1(
> -; CHECK: ret double 0x7FF0000000000000
> -
> -
> -define double @test_Inf_2() {
> - %1 = call double @llvm.fma.f64(double 7.0, double
> 0x7FF0000000000000, double 0.0)
> - ret double %1
> -}
> -; CHECK-LABEL: @test_Inf_2(
> -; CHECK: ret double 0x7FF0000000000000
> -
> -
> -define double @test_Inf_3() {
> - %1 = call double @llvm.fma.f64(double 0xFFF0000000000000, double
> 8.0, double 0.0)
> - ret double %1
> -}
> -; CHECK-LABEL: @test_Inf_3(
> -; CHECK: ret double 0xFFF0000000000000
> -
> -
> -define double @test_Inf_4() {
> - %1 = call double @llvm.fma.f64(double 7.0, double
> 0xFFF0000000000000, double 0.0)
> - ret double %1
> -}
> -; CHECK-LABEL: @test_Inf_4(
> -; CHECK: ret double 0xFFF0000000000000
> -
>
>
> _______________________________________________
> llvm-commits mailing list
> llvm-commits at cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
>
--
Hal Finkel
Assistant Computational Scientist
Leadership Computing Facility
Argonne National Laboratory
More information about the llvm-commits
mailing list