; RUN: llc -mtriple=arm-eabi -mattr=+vfp2 %s -o - \ ; RUN: | FileCheck %s -check-prefix=VFP2 ; RUN: llc -mtriple=arm-eabi -mattr=+neon,-neonfp %s -o - \ ; RUN: | FileCheck %s -check-prefix=NFP0 ; RUN: llc -mtriple=arm-eabi -mattr=+neon,+neonfp %s -o - \ ; RUN: | FileCheck %s -check-prefix=NFP1 ; RUN: llc -mtriple=arm-eabi -mcpu=cortex-a8 %s -o - \ ; RUN: | FileCheck %s -check-prefix=CORTEXA8 ; RUN: llc -mtriple=arm-eabi -mcpu=cortex-a8 --enable-unsafe-fp-math %s -o - \ ; RUN: | FileCheck %s -check-prefix=CORTEXA8U ; RUN: llc -mtriple=arm-darwin -mcpu=cortex-a8 %s -o - \ ; RUN: | FileCheck %s -check-prefix=CORTEXA8U ; RUN: llc -mtriple=arm-eabi -mcpu=cortex-a9 %s -o - \ ; RUN: | FileCheck %s -check-prefix=CORTEXA9 define float @test1(float* %a) { entry: %0 = load float, float* %a, align 4 ; <float> [#uses=2] %1 = fsub float -0.000000e+00, %0 ; <float> [#uses=2] %2 = fpext float %1 to double ; <double> [#uses=1] %3 = fcmp olt double %2, 1.234000e+00 ; <i1> [#uses=1] %retval = select i1 %3, float %1, float %0 ; <float> [#uses=1] ret float %retval } ; VFP2-LABEL: test1: ; VFP2: vneg.f32 s{{.*}}, s{{.*}} ; NFP1-LABEL: test1: ; NFP1: vneg.f32 d{{.*}}, d{{.*}} ; NFP0-LABEL: test1: ; NFP0: vneg.f32 s{{.*}}, s{{.*}} ; CORTEXA8-LABEL: test1: ; CORTEXA8: vneg.f32 s{{.*}}, s{{.*}} ; CORTEXA8U-LABEL: test1: ; CORTEXA8U: vneg.f32 d{{.*}}, d{{.*}} ; CORTEXA9-LABEL: test1: ; CORTEXA9: vneg.f32 s{{.*}}, s{{.*}} define float @test2(float* %a) { entry: %0 = load float, float* %a, align 4 ; <float> [#uses=2] %1 = fneg float %0 ; <float> [#uses=2] %2 = fpext float %1 to double ; <double> [#uses=1] %3 = fcmp olt double %2, 1.234000e+00 ; <i1> [#uses=1] %retval = select i1 %3, float %1, float %0 ; <float> [#uses=1] ret float %retval } ; VFP2-LABEL: test2: ; VFP2: vneg.f32 s{{.*}}, s{{.*}} ; NFP1-LABEL: test2: ; NFP1: vneg.f32 d{{.*}}, d{{.*}} ; NFP0-LABEL: test2: ; NFP0: vneg.f32 s{{.*}}, s{{.*}} ; CORTEXA8-LABEL: test2: ; CORTEXA8: vneg.f32 s{{.*}}, s{{.*}} ; CORTEXA8U-LABEL: test2: ; CORTEXA8U: vneg.f32 d{{.*}}, d{{.*}} ; CORTEXA9-LABEL: test2: ; CORTEXA9: vneg.f32 s{{.*}}, s{{.*}} ; If we're bitcasting an integer to an FP vector, we should avoid the FP/vector unit entirely. ; Make sure that we're flipping the sign bit and only the sign bit of each float (PR20354). ; So instead of something like this: ; vmov d16, r0, r1 ; vneg.f32 d16, d16 ; vmov r0, r1, d16 ; ; We should generate: ; eor r0, r0, #-214783648 ; eor r1, r1, #-214783648 define <2 x float> @fneg_bitcast(i64 %i) { %bitcast = bitcast i64 %i to <2 x float> %fneg = fsub <2 x float> <float -0.0, float -0.0>, %bitcast ret <2 x float> %fneg } ; VFP2-LABEL: fneg_bitcast: ; VFP2-DAG: eor r0, r0, #-2147483648 ; VFP2-DAG: eor r1, r1, #-2147483648 ; VFP2-NOT: vneg.f32 ; NFP1-LABEL: fneg_bitcast: ; NFP1-DAG: eor r0, r0, #-2147483648 ; NFP1-DAG: eor r1, r1, #-2147483648 ; NFP1-NOT: vneg.f32 ; NFP0-LABEL: fneg_bitcast: ; NFP0-DAG: eor r0, r0, #-2147483648 ; NFP0-DAG: eor r1, r1, #-2147483648 ; NFP0-NOT: vneg.f32 ; CORTEXA8-LABEL: fneg_bitcast: ; CORTEXA8-DAG: eor r0, r0, #-2147483648 ; CORTEXA8-DAG: eor r1, r1, #-2147483648 ; CORTEXA8-NOT: vneg.f32 ; CORTEXA8U-LABEL: fneg_bitcast: ; CORTEXA8U-DAG: eor r0, r0, #-2147483648 ; CORTEXA8U-DAG: eor r1, r1, #-2147483648 ; CORTEXA8U-NOT: vneg.f32 ; CORTEXA9-LABEL: fneg_bitcast: ; CORTEXA9-DAG: eor r0, r0, #-2147483648 ; CORTEXA9-DAG: eor r1, r1, #-2147483648 ; CORTEXA9-NOT: vneg.f32