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TheRock/compiler/amd-llvm/llvm/test/CodeGen/AMDGPU/opt-vgpr-live-range-verifier-error.mir
derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

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# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx90a -verify-machineinstrs -run-pass=si-opt-vgpr-liverange -o - %s | FileCheck %s
# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx90a -passes=si-opt-vgpr-liverange -o - %s | FileCheck %s
#
# This is a very rare case which comes from llvm-reduce. The SI_IF/SI_ELSE usage is quite different from normal.
#
# CHECK-LABEL: name: unusual_if_else
---
name: unusual_if_else
tracksRegLiveness: true
machineFunctionInfo:
scratchRSrcReg: '$sgpr0_sgpr1_sgpr2_sgpr3'
stackPtrOffsetReg: '$sgpr32'
body: |
bb.0:
successors: %bb.1(0x80000000)
%0:sreg_32 = S_ADD_U32 undef %1.sub0:sgpr_64, 32, implicit-def $scc
%2:sreg_32 = S_ADDC_U32 undef %1.sub1:sgpr_64, 0, implicit-def dead $scc, implicit killed $scc
%3:sreg_64 = REG_SEQUENCE killed %0, %subreg.sub0, killed %2, %subreg.sub1
%4:vgpr_32 = V_MOV_B32_e32 0, implicit $exec
bb.1:
successors: %bb.2(0x40000000), %bb.4(0x40000000)
%5:sreg_64 = V_CMP_LT_I32_e64 0, %4, implicit $exec
%6:sreg_64 = SI_IF killed %5, %bb.2, implicit-def dead $exec, implicit-def dead $scc, implicit $exec
S_BRANCH %bb.4
bb.2:
successors: %bb.4(0x40000000), %bb.3(0x40000000)
dead %7:sreg_64 = SI_ELSE killed %6, %bb.4, implicit-def dead $exec, implicit-def dead $scc, implicit $exec
S_BRANCH %bb.3
bb.3:
successors: %bb.4(0x80000000)
%8:sreg_64 = V_CMP_EQ_U32_e64 0, killed %4, implicit $exec
dead %9:sreg_64 = SI_IF killed %8, %bb.4, implicit-def dead $exec, implicit-def dead $scc, implicit $exec
S_BRANCH %bb.4
bb.4:
...