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915bedfc17
The early tail duplicator pass introduces new ones, so a MIR test that infers no phis since there were none on the input would fail the verifier after running.
42 lines
1.2 KiB
YAML
42 lines
1.2 KiB
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -run-pass=early-tailduplication -verify-machineinstrs -o - %s | FileCheck %s
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# There are no phis in this testcase. Early tail duplication introduces them,
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# so the NoPHIs property needs to be cleared to avoid verifier errors
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---
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name: tail_duplicate_nophis
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tracksRegLiveness: true
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body: |
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; CHECK-LABEL: name: tail_duplicate_nophis
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; CHECK: bb.0:
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; CHECK: successors: %bb.3(0x80000000)
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; CHECK: [[S_MOV_B32_:%[0-9]+]]:sreg_32 = S_MOV_B32 0
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; CHECK: S_BRANCH %bb.3
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; CHECK: bb.2:
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; CHECK: successors: %bb.3(0x80000000)
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; CHECK: [[DEF:%[0-9]+]]:sreg_32 = IMPLICIT_DEF
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; CHECK: S_SLEEP 9
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; CHECK: bb.3:
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; CHECK: successors: %bb.3(0x80000000)
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; CHECK: [[PHI:%[0-9]+]]:sreg_32 = PHI [[DEF]], %bb.2, %1, %bb.3, [[S_MOV_B32_]], %bb.0
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; CHECK: S_NOP 0, implicit [[PHI]]
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; CHECK: S_SLEEP 1
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; CHECK: [[S_MOV_B32_1:%[0-9]+]]:sreg_32 = S_MOV_B32 0
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; CHECK: S_BRANCH %bb.3
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bb.1:
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bb.2:
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%5:sreg_32 = S_MOV_B32 0
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S_BRANCH %bb.4
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bb.3:
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S_SLEEP 9
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bb.4:
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S_NOP 0, implicit %5
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S_SLEEP 1
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S_BRANCH %bb.2
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...
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