1 ; Show that we can take advantage of the vmls instruction for floating point 2 ; operations during optimization. 3 4 ; Note that we use -O2 to force the result of the fmul to be 5 ; (immediately) available for the fsub. When using -Om1, the merge of 6 ; fmul and fsub does not happen. 7 8 ; REQUIRES: allow_dump 9 10 ; Compile using standalone assembler. 11 ; RUN: %p2i --filetype=asm -i %s --target=arm32 --args -O2 \ 12 ; RUN: -reg-use=s20,s21,s22,d20,d21,d22 \ 13 ; RUN: | FileCheck %s --check-prefix=ASM 14 15 ; Show bytes in assembled standalone code. 16 ; RUN: %p2i --filetype=asm -i %s --target=arm32 --assemble --disassemble \ 17 ; RUN: --args -O2 -reg-use=s20,s21,s22,d20,d21,d22 \ 18 ; RUN: | FileCheck %s --check-prefix=DIS 19 20 ; Compile using integrated assembler. 21 ; RUN: %p2i --filetype=iasm -i %s --target=arm32 --args -O2 \ 22 ; RUN: -reg-use=s20,s21,s22,d20,d21,d22 \ 23 ; RUN: | FileCheck %s --check-prefix=IASM 24 25 ; Show bytes in assembled integrated code. 26 ; RUN: %p2i --filetype=iasm -i %s --target=arm32 --assemble --disassemble \ 27 ; RUN: --args -O2 -reg-use=s20,s21,s22,d20,d21,d22 \ 28 ; RUN: | FileCheck %s --check-prefix=DIS 29 30 define internal float @mulSubFloat(float %f1, float %f2) { 31 ; ASM-LABEL: mulSubFloat: 32 ; DIS-LABEL: 00000000 <mulSubFloat>: 33 34 %v1 = fmul float %f1, 1.5 35 %v2 = fsub float %f2, %v1 36 37 ; ASM: vmls.f32 s21, s20, s22 38 ; DIS: 10: ee4aaa4b 39 ; IASM-NOT: vmls.f32 40 41 ret float %v2 42 } 43 44 define internal double @mulSubDouble(double %f1, double %f2) { 45 ; ASM-LABEL: mulSubDouble: 46 ; DIS-LABEL: 00000020 <mulSubDouble>: 47 48 %v1 = fmul double %f1, 1.5 49 %v2 = fsub double %f2, %v1 50 51 ; ASM: vmls.f64 d21, d20, d22 52 ; DIS: 2c: ee445be6 53 ; IASM-NOT: vmls.f64 54 55 ret double %v2 56 } 57
