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https://github.com/RPCS3/llvm.git
synced 2026-07-22 11:45:31 -04:00
Marek Olsak
4fda278e9b
Summary: Kill the thread if operand 0 == false. llvm.amdgcn.wqm.vote can be applied to the operand. Also allow kill in all shader stages. Reviewers: arsenm, nhaehnle Subscribers: kzhuravl, wdng, yaxunl, dstuttard, tpr, t-tye, llvm-commits Differential Revision: https://reviews.llvm.org/D38544 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316427 91177308-0d34-0410-b5e6-96231b3b80d8
41 lines
864 B
YAML
41 lines
864 B
YAML
# RUN: llc -march=amdgcn -mcpu=polaris10 -run-pass si-insert-skips -amdgpu-skip-threshold=1 %s -o - | FileCheck %s
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# https://bugs.freedesktop.org/show_bug.cgi?id=99019
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--- |
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define amdgpu_ps void @kill_uncond_branch() {
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ret void
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}
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...
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---
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# CHECK-LABEL: name: kill_uncond_branch
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# CHECK: bb.0:
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# CHECK: S_CBRANCH_VCCNZ %bb.1, implicit %vcc
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# CHECK: bb.1:
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# CHECK: V_CMPX_LE_F32_e32
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# CHECK-NEXT: S_CBRANCH_EXECNZ %bb.2, implicit %exec
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# CHECK: bb.3:
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# CHECK-NEXT: EXP_DONE
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# CHECK: S_ENDPGM
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# CHECK: bb.2:
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# CHECK: S_ENDPGM
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name: kill_uncond_branch
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body: |
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bb.0:
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successors: %bb.1
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S_CBRANCH_VCCNZ %bb.1, implicit %vcc
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bb.1:
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successors: %bb.2
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%vgpr0 = V_MOV_B32_e32 0, implicit %exec
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SI_KILL_F32_COND_IMM_TERMINATOR %vgpr0, 0, 3, implicit-def %exec, implicit-def %vcc, implicit %exec
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S_BRANCH %bb.2
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bb.2:
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S_ENDPGM
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