derek.holloway
7502bf64a4
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239 lines
9.8 KiB
LLVM
239 lines
9.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=riscv64 -mattr=+v,+zvfh,+f,+d -verify-machineinstrs %s -o - --riscv-lower-ext-max-web-size=1 | FileCheck %s --check-prefixes=NO_FOLDING,NO_FOLDING1
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; RUN: llc -mtriple=riscv64 -mattr=+v,+zvfh,+f,+d -verify-machineinstrs %s -o - --riscv-lower-ext-max-web-size=2 | FileCheck %s --check-prefixes=NO_FOLDING,NO_FOLDING2
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; RUN: llc -mtriple=riscv64 -mattr=+v,+zvfh,+f,+d -verify-machineinstrs %s -o - --riscv-lower-ext-max-web-size=3 | FileCheck %s --check-prefixes=FOLDING,ZVFH
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; RUN: llc -mtriple=riscv64 -mattr=+v,+zvfhmin,+f,+d -verify-machineinstrs %s -o - --riscv-lower-ext-max-web-size=3 | FileCheck %s --check-prefixes=FOLDING,ZVFHMIN
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; Check that the default value enables the web folding and
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; that it is bigger than 3.
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; RUN: llc -mtriple=riscv64 -mattr=+v,+zvfh,+f,+d -verify-machineinstrs %s -o - | FileCheck %s --check-prefixes=FOLDING,ZVFH
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define void @vfwmul_v2f116_multiple_users(ptr %x, ptr %y, ptr %z, <2 x half> %a, <2 x half> %b, <2 x half> %b2) {
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; NO_FOLDING1-LABEL: vfwmul_v2f116_multiple_users:
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; NO_FOLDING1: # %bb.0:
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; NO_FOLDING1-NEXT: vsetivli zero, 2, e16, mf4, ta, ma
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; NO_FOLDING1-NEXT: vfwcvt.f.f.v v11, v8
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; NO_FOLDING1-NEXT: vfwcvt.f.f.v v8, v9
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; NO_FOLDING1-NEXT: vfwcvt.f.f.v v9, v10
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; NO_FOLDING1-NEXT: vsetvli zero, zero, e32, mf2, ta, ma
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; NO_FOLDING1-NEXT: vfmul.vv v10, v11, v8
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; NO_FOLDING1-NEXT: vfadd.vv v11, v11, v9
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; NO_FOLDING1-NEXT: vfsub.vv v8, v8, v9
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; NO_FOLDING1-NEXT: vse32.v v10, (a0)
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; NO_FOLDING1-NEXT: vse32.v v11, (a1)
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; NO_FOLDING1-NEXT: vse32.v v8, (a2)
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; NO_FOLDING1-NEXT: ret
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;
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; NO_FOLDING2-LABEL: vfwmul_v2f116_multiple_users:
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; NO_FOLDING2: # %bb.0:
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; NO_FOLDING2-NEXT: vsetivli zero, 2, e16, mf4, ta, ma
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; NO_FOLDING2-NEXT: vfwcvt.f.f.v v11, v8
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; NO_FOLDING2-NEXT: vfwcvt.f.f.v v8, v9
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; NO_FOLDING2-NEXT: vsetvli zero, zero, e32, mf2, ta, ma
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; NO_FOLDING2-NEXT: vfmul.vv v9, v11, v8
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; NO_FOLDING2-NEXT: vsetvli zero, zero, e16, mf4, ta, ma
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; NO_FOLDING2-NEXT: vfwadd.wv v11, v11, v10
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; NO_FOLDING2-NEXT: vfwsub.wv v8, v8, v10
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; NO_FOLDING2-NEXT: vse32.v v9, (a0)
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; NO_FOLDING2-NEXT: vse32.v v11, (a1)
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; NO_FOLDING2-NEXT: vse32.v v8, (a2)
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; NO_FOLDING2-NEXT: ret
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;
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; ZVFH-LABEL: vfwmul_v2f116_multiple_users:
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; ZVFH: # %bb.0:
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; ZVFH-NEXT: vsetivli zero, 2, e16, mf4, ta, ma
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; ZVFH-NEXT: vfwmul.vv v11, v8, v9
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; ZVFH-NEXT: vfwadd.vv v12, v8, v10
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; ZVFH-NEXT: vfwsub.vv v8, v9, v10
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; ZVFH-NEXT: vse32.v v11, (a0)
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; ZVFH-NEXT: vse32.v v12, (a1)
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; ZVFH-NEXT: vse32.v v8, (a2)
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; ZVFH-NEXT: ret
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;
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; ZVFHMIN-LABEL: vfwmul_v2f116_multiple_users:
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; ZVFHMIN: # %bb.0:
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; ZVFHMIN-NEXT: vsetivli zero, 2, e16, mf4, ta, ma
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; ZVFHMIN-NEXT: vfwcvt.f.f.v v11, v8
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; ZVFHMIN-NEXT: vfwcvt.f.f.v v8, v9
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; ZVFHMIN-NEXT: vfwcvt.f.f.v v9, v10
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; ZVFHMIN-NEXT: vsetvli zero, zero, e32, mf2, ta, ma
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; ZVFHMIN-NEXT: vfmul.vv v10, v11, v8
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; ZVFHMIN-NEXT: vfadd.vv v11, v11, v9
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; ZVFHMIN-NEXT: vfsub.vv v8, v8, v9
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; ZVFHMIN-NEXT: vse32.v v10, (a0)
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; ZVFHMIN-NEXT: vse32.v v11, (a1)
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; ZVFHMIN-NEXT: vse32.v v8, (a2)
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; ZVFHMIN-NEXT: ret
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%c = fpext <2 x half> %a to <2 x float>
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%d = fpext <2 x half> %b to <2 x float>
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%d2 = fpext <2 x half> %b2 to <2 x float>
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%e = fmul <2 x float> %c, %d
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%f = fadd <2 x float> %c, %d2
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%g = fsub <2 x float> %d, %d2
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store <2 x float> %e, ptr %x
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store <2 x float> %f, ptr %y
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store <2 x float> %g, ptr %z
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ret void
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}
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define void @vfwmul_v2f32_multiple_users(ptr %x, ptr %y, ptr %z, <2 x float> %a, <2 x float> %b, <2 x float> %b2) {
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; NO_FOLDING1-LABEL: vfwmul_v2f32_multiple_users:
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; NO_FOLDING1: # %bb.0:
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; NO_FOLDING1-NEXT: vsetivli zero, 2, e32, mf2, ta, ma
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; NO_FOLDING1-NEXT: vfwcvt.f.f.v v11, v8
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; NO_FOLDING1-NEXT: vfwcvt.f.f.v v8, v9
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; NO_FOLDING1-NEXT: vfwcvt.f.f.v v9, v10
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; NO_FOLDING1-NEXT: vsetvli zero, zero, e64, m1, ta, ma
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; NO_FOLDING1-NEXT: vfmul.vv v10, v11, v8
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; NO_FOLDING1-NEXT: vfadd.vv v11, v11, v9
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; NO_FOLDING1-NEXT: vfsub.vv v8, v8, v9
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; NO_FOLDING1-NEXT: vse64.v v10, (a0)
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; NO_FOLDING1-NEXT: vse64.v v11, (a1)
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; NO_FOLDING1-NEXT: vse64.v v8, (a2)
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; NO_FOLDING1-NEXT: ret
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;
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; NO_FOLDING2-LABEL: vfwmul_v2f32_multiple_users:
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; NO_FOLDING2: # %bb.0:
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; NO_FOLDING2-NEXT: vsetivli zero, 2, e32, mf2, ta, ma
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; NO_FOLDING2-NEXT: vfwcvt.f.f.v v11, v8
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; NO_FOLDING2-NEXT: vfwcvt.f.f.v v8, v9
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; NO_FOLDING2-NEXT: vsetvli zero, zero, e64, m1, ta, ma
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; NO_FOLDING2-NEXT: vfmul.vv v9, v11, v8
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; NO_FOLDING2-NEXT: vsetvli zero, zero, e32, mf2, ta, ma
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; NO_FOLDING2-NEXT: vfwadd.wv v11, v11, v10
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; NO_FOLDING2-NEXT: vfwsub.wv v8, v8, v10
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; NO_FOLDING2-NEXT: vse64.v v9, (a0)
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; NO_FOLDING2-NEXT: vse64.v v11, (a1)
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; NO_FOLDING2-NEXT: vse64.v v8, (a2)
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; NO_FOLDING2-NEXT: ret
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;
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; FOLDING-LABEL: vfwmul_v2f32_multiple_users:
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; FOLDING: # %bb.0:
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; FOLDING-NEXT: vsetivli zero, 2, e32, mf2, ta, ma
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; FOLDING-NEXT: vfwmul.vv v11, v8, v9
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; FOLDING-NEXT: vfwadd.vv v12, v8, v10
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; FOLDING-NEXT: vfwsub.vv v8, v9, v10
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; FOLDING-NEXT: vse64.v v11, (a0)
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; FOLDING-NEXT: vse64.v v12, (a1)
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; FOLDING-NEXT: vse64.v v8, (a2)
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; FOLDING-NEXT: ret
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%c = fpext <2 x float> %a to <2 x double>
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%d = fpext <2 x float> %b to <2 x double>
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%d2 = fpext <2 x float> %b2 to <2 x double>
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%e = fmul <2 x double> %c, %d
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%f = fadd <2 x double> %c, %d2
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%g = fsub <2 x double> %d, %d2
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store <2 x double> %e, ptr %x
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store <2 x double> %f, ptr %y
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store <2 x double> %g, ptr %z
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ret void
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}
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define void @vfwmacc_v2f32_multiple_users(ptr %x, ptr %y, ptr %z, <2 x float> %a, <2 x float> %b, <2 x float> %b2, <2 x double> %w) {
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; NO_FOLDING-LABEL: vfwmacc_v2f32_multiple_users:
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; NO_FOLDING: # %bb.0:
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; NO_FOLDING-NEXT: vsetivli zero, 2, e32, mf2, ta, ma
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; NO_FOLDING-NEXT: vfwcvt.f.f.v v12, v8
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; NO_FOLDING-NEXT: vfwcvt.f.f.v v8, v9
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; NO_FOLDING-NEXT: vfwcvt.f.f.v v9, v10
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; NO_FOLDING-NEXT: vsetvli zero, zero, e64, m1, ta, ma
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; NO_FOLDING-NEXT: vfmul.vv v10, v12, v8
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; NO_FOLDING-NEXT: vfmadd.vv v12, v9, v11
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; NO_FOLDING-NEXT: vfsub.vv v8, v8, v9
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; NO_FOLDING-NEXT: vse64.v v10, (a0)
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; NO_FOLDING-NEXT: vse64.v v12, (a1)
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; NO_FOLDING-NEXT: vse64.v v8, (a2)
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; NO_FOLDING-NEXT: ret
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;
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; FOLDING-LABEL: vfwmacc_v2f32_multiple_users:
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; FOLDING: # %bb.0:
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; FOLDING-NEXT: vsetivli zero, 2, e32, mf2, ta, ma
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; FOLDING-NEXT: vfwmul.vv v12, v8, v9
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; FOLDING-NEXT: vfwsub.vv v13, v9, v10
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; FOLDING-NEXT: vfwmacc.vv v11, v8, v10
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; FOLDING-NEXT: vse64.v v12, (a0)
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; FOLDING-NEXT: vse64.v v11, (a1)
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; FOLDING-NEXT: vse64.v v13, (a2)
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; FOLDING-NEXT: ret
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%c = fpext <2 x float> %a to <2 x double>
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%d = fpext <2 x float> %b to <2 x double>
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%d2 = fpext <2 x float> %b2 to <2 x double>
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%e = fmul <2 x double> %c, %d
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%f = call <2 x double> @llvm.fma(<2 x double> %c, <2 x double> %d2, <2 x double> %w)
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%g = fsub <2 x double> %d, %d2
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store <2 x double> %e, ptr %x
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store <2 x double> %f, ptr %y
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store <2 x double> %g, ptr %z
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ret void
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}
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; Negative test. We can't fold because the FMA addend is a user.
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define void @vfwmacc_v2f32_multiple_users_addend_user(ptr %x, ptr %y, ptr %z, <2 x float> %a, <2 x float> %b, <2 x float> %b2) {
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; NO_FOLDING-LABEL: vfwmacc_v2f32_multiple_users_addend_user:
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; NO_FOLDING: # %bb.0:
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; NO_FOLDING-NEXT: vsetivli zero, 2, e32, mf2, ta, ma
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; NO_FOLDING-NEXT: vfwcvt.f.f.v v11, v8
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; NO_FOLDING-NEXT: vfwcvt.f.f.v v8, v9
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; NO_FOLDING-NEXT: vfwcvt.f.f.v v9, v10
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; NO_FOLDING-NEXT: vsetvli zero, zero, e64, m1, ta, ma
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; NO_FOLDING-NEXT: vfmul.vv v10, v11, v8
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; NO_FOLDING-NEXT: vfmadd.vv v11, v9, v8
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; NO_FOLDING-NEXT: vfsub.vv v8, v8, v9
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; NO_FOLDING-NEXT: vse64.v v10, (a0)
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; NO_FOLDING-NEXT: vse64.v v11, (a1)
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; NO_FOLDING-NEXT: vse64.v v8, (a2)
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; NO_FOLDING-NEXT: ret
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;
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; FOLDING-LABEL: vfwmacc_v2f32_multiple_users_addend_user:
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; FOLDING: # %bb.0:
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; FOLDING-NEXT: vsetivli zero, 2, e32, mf2, ta, ma
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; FOLDING-NEXT: vfwcvt.f.f.v v11, v8
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; FOLDING-NEXT: vfwcvt.f.f.v v8, v9
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; FOLDING-NEXT: vfwcvt.f.f.v v9, v10
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; FOLDING-NEXT: vsetvli zero, zero, e64, m1, ta, ma
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; FOLDING-NEXT: vfmul.vv v10, v11, v8
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; FOLDING-NEXT: vfmadd.vv v11, v9, v8
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; FOLDING-NEXT: vfsub.vv v8, v8, v9
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; FOLDING-NEXT: vse64.v v10, (a0)
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; FOLDING-NEXT: vse64.v v11, (a1)
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; FOLDING-NEXT: vse64.v v8, (a2)
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; FOLDING-NEXT: ret
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%c = fpext <2 x float> %a to <2 x double>
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%d = fpext <2 x float> %b to <2 x double>
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%d2 = fpext <2 x float> %b2 to <2 x double>
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%e = fmul <2 x double> %c, %d
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%f = call <2 x double> @llvm.fma(<2 x double> %c, <2 x double> %d2, <2 x double> %d)
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%g = fsub <2 x double> %d, %d2
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store <2 x double> %e, ptr %x
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store <2 x double> %f, ptr %y
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store <2 x double> %g, ptr %z
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ret void
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}
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; Negative test. We can't fold because the FMA addend is a user.
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define void @vfwmacc_v2f32_addend_user(ptr %x, <2 x float> %a, <2 x float> %b) {
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; NO_FOLDING-LABEL: vfwmacc_v2f32_addend_user:
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; NO_FOLDING: # %bb.0:
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; NO_FOLDING-NEXT: vsetivli zero, 2, e32, mf2, ta, ma
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; NO_FOLDING-NEXT: vfwcvt.f.f.v v10, v8
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; NO_FOLDING-NEXT: vfwcvt.f.f.v v8, v9
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; NO_FOLDING-NEXT: vsetvli zero, zero, e64, m1, ta, ma
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; NO_FOLDING-NEXT: vfmadd.vv v8, v10, v8
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; NO_FOLDING-NEXT: vse64.v v8, (a0)
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; NO_FOLDING-NEXT: ret
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;
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; FOLDING-LABEL: vfwmacc_v2f32_addend_user:
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; FOLDING: # %bb.0:
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; FOLDING-NEXT: vsetivli zero, 2, e32, mf2, ta, ma
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; FOLDING-NEXT: vfwcvt.f.f.v v10, v8
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; FOLDING-NEXT: vfwcvt.f.f.v v8, v9
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; FOLDING-NEXT: vsetvli zero, zero, e64, m1, ta, ma
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; FOLDING-NEXT: vfmadd.vv v8, v10, v8
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; FOLDING-NEXT: vse64.v v8, (a0)
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; FOLDING-NEXT: ret
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%c = fpext <2 x float> %a to <2 x double>
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%d = fpext <2 x float> %b to <2 x double>
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%f = call <2 x double> @llvm.fma(<2 x double> %c, <2 x double> %d, <2 x double> %d)
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store <2 x double> %f, ptr %x
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ret void
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}
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