forked from OSchip/llvm-project
39 lines
1.2 KiB
Plaintext
39 lines
1.2 KiB
Plaintext
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# RUN: llc -mtriple=amdgcn -verify-machineinstrs -run-pass si-fold-operands %s -o - | FileCheck %s
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# CHECK-LABEL: bb.2:
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# CHECK: %I_out
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# CHECK-NOT: %I
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---
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name: main
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tracksRegLiveness: true
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body: |
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bb.0:
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successors: %bb.1(0x80000000)
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liveins: $sgpr0, $vgpr0, $vgpr1
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%0:sreg_32 = S_MOV_B32 0
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%1:sreg_64 = S_MOV_B64 0
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%tid_x:vgpr_32 = COPY $vgpr0
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%tid_y:vgpr_32 = COPY $vgpr1
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%arg:sgpr_32 = COPY $sgpr0
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bb.1: ; loop
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successors: %bb.2(0x40000000), %bb.1(0x40000000)
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%I:sreg_32 = PHI %0, %bb.0, %I_inc, %bb.1
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%break_inc:sreg_64 = PHI %1, %bb.0, %break, %bb.1
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%cond:sreg_64 = V_CMP_LE_U32_e64 %arg, %tid_x, implicit $exec
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%break:sreg_64 = SI_IF_BREAK %cond, %break_inc, implicit-def $scc
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%I_out:vgpr_32 = COPY %I, implicit $exec
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%I_inc:sreg_32 = S_ADD_I32 %I, 1, implicit-def $scc
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SI_LOOP %break, %bb.1, implicit-def dead $exec, implicit $exec, implicit-def $scc
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S_BRANCH %bb.2
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bb.2: ; end loop
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successors: %bb.3(0x40000000)
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%2:sreg_64_xexec = V_CMP_EQ_U32_e64 %I_out, %tid_y, implicit $exec
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%3:vgpr_32 = V_CNDMASK_B32_e64 0, 0, 0, 1, killed %2, implicit $exec
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S_BRANCH %bb.3
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bb.3: ; exit
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S_ENDPGM 0
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...
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