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TheRock/compiler/amd-llvm/llvm/test/CodeGen/Hexagon/vect/qfp-mix.mir
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

80 lines
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# RUN: llc -march=hexagon -mcpu=hexagonv68 -mattr=+hvxv68,+hvx-length128b \
# RUN: -run-pass hexagon-qfp-optimizer %s -o - | FileCheck %s
# Test that the operands are swapped for Add if the second operand
# is a qf32 to sf conversion. V6_vadd_qf32_mix supports first operand
# as qf32.
# CHECK-LABEL: name: qfpAddMix
# CHECK: %[[REG:([0-9]+)]]:hvxvr = V6_vmpy_qf32_sf
# CHECK: V6_vadd_qf32_mix %[[REG]]
---
name: qfpAddMix
tracksRegLiveness: true
body: |
bb.0:
liveins: $r0, $r1, $r2, $r3
%0:intregs = COPY $r0
%1:intregs = COPY $r1
%2:intregs = COPY $r2
%3:hvxvr = V6_vL32Ub_ai %0:intregs, 0
%4:hvxvr = V6_vL32Ub_ai %1:intregs, 0
%5:hvxvr = V6_vL32Ub_ai %2:intregs, 0
%6:hvxvr = V6_vmpy_qf32_sf %4, %5
%7:hvxvr = V6_vconv_sf_qf32 %6:hvxvr
%8:hvxvr = V6_vadd_sf %3:hvxvr, %7:hvxvr
...
# Test that we do not generate V6_vsub_qf32_mix for the below test.
# V6_vsub_qf32_mix only allowes qf32 as first operand. In the test qf32
# is passed as second operand. As sub is not commutative, we should not
# generate the mix instruction.
# CHECK-LABEL: name: qfpSubNoMix
# CHECK-NOT: V6_vsub_qf32_mix
---
name: qfpSubNoMix
tracksRegLiveness: true
body: |
bb.0:
liveins: $r0, $r1, $r2, $r3
%0:intregs = COPY $r0
%1:intregs = COPY $r1
%2:intregs = COPY $r2
%3:hvxvr = V6_vL32Ub_ai %0:intregs, 0
%4:hvxvr = V6_vL32Ub_ai %1:intregs, 0
%5:hvxvr = V6_vL32Ub_ai %2:intregs, 0
%6:hvxvr = V6_vmpy_qf32_sf %4, %5
%7:hvxvr = V6_vconv_sf_qf32 %6:hvxvr
%8:hvxvr = V6_vsub_sf %3:hvxvr, %7:hvxvr
...
# Test that we do generate V6_vsub_qf32_mix for the below test.
# V6_vsub_qf32_mix only allowes qf32 as first operand. In the test qf32
# is passed as first operand. So, V6_vsub_qf32_mix must be generated.
# CHECK-LABEL: name: qfpSubMix
# CHECK: V6_vsub_qf32_mix
---
name: qfpSubMix
tracksRegLiveness: true
body: |
bb.0:
liveins: $r0, $r1, $r2, $r3
%0:intregs = COPY $r0
%1:intregs = COPY $r1
%2:intregs = COPY $r2
%3:hvxvr = V6_vL32Ub_ai %0:intregs, 0
%4:hvxvr = V6_vL32Ub_ai %1:intregs, 0
%5:hvxvr = V6_vL32Ub_ai %2:intregs, 0
%6:hvxvr = V6_vmpy_qf32_sf %4, %5
%7:hvxvr = V6_vconv_sf_qf32 %6:hvxvr
%8:hvxvr = V6_vsub_sf %7:hvxvr, %3:hvxvr
...