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llvm-mirror/test/CodeGen/AMDGPU/GlobalISel/regbankselect-amdgpu-ffbh-u32.mir
Matt Arsenault ae11fea1a6 GlobalISel: Add target pre-isel instructions
Allows targets to introduce regbankselectable
pseudo-instructions. Currently the closet feature to this is an
intrinsic. However this requires creating a public intrinsic
declaration. This litters the public intrinsic namespace with
operations we don't necessarily want to expose to IR producers, and
would rather leave as private to the backend.

Use a new instruction bit. A previous attempt tried to keep using enum
value ranges, but it turned into a mess.

llvm-svn: 373937
2019-10-07 18:43:29 +00:00

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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -march=amdgcn -mcpu=fiji -run-pass=regbankselect %s -verify-machineinstrs -o - -regbankselect-fast | FileCheck %s
# RUN: llc -march=amdgcn -mcpu=fiji -run-pass=regbankselect %s -verify-machineinstrs -o - -regbankselect-greedy | FileCheck %s
---
name: ffbh_u32_s
legalized: true
body: |
bb.0:
liveins: $sgpr0
; CHECK-LABEL: name: ffbh_u32_s
; CHECK: [[COPY:%[0-9]+]]:sgpr(s32) = COPY $sgpr0
; CHECK: [[AMDGPU_FFBH_U32_:%[0-9]+]]:vgpr(s32) = G_AMDGPU_FFBH_U32 [[COPY]](s32)
%0:_(s32) = COPY $sgpr0
%1:_(s32) = G_AMDGPU_FFBH_U32 %0
...
---
name: ffbh_u32_v
legalized: true
body: |
bb.0:
liveins: $vgpr0_vgpr1
; CHECK-LABEL: name: ffbh_u32_v
; CHECK: [[COPY:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
; CHECK: [[AMDGPU_FFBH_U32_:%[0-9]+]]:vgpr(s32) = G_AMDGPU_FFBH_U32 [[COPY]](s32)
%0:_(s32) = COPY $vgpr0
%1:_(s32) = G_AMDGPU_FFBH_U32 %0
...