4ad7685258
This reverts commit 80a34ae311 with fixes.
Previously, since bots turning on EXPENSIVE_CHECKS are essentially turning on
MachineVerifierPass by default on X86 and the fact that
inline-asm-avx-v-constraint-32bit.ll and inline-asm-avx512vl-v-constraint-32bit.ll
are not expected to generate functioning machine code, this would go
down to `report_fatal_error` in MachineVerifierPass. Here passing
`-verify-machineinstrs=0` to make the intent explicit.
85 lines
2.0 KiB
YAML
85 lines
2.0 KiB
YAML
# RUN: not --crash llc -run-pass=machineverifier %s -o - 2>&1 | FileCheck %s
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# REQUIRES: aarch64-registered-target
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--- |
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target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
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target triple = "aarch64--"
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define void @valid(i8* %addr) {
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entry:
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br i1 0, label %if, label %else
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if:
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br label %exit
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else:
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br label %exit
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exit:
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ret void
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}
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define void @broken(i8* %addr) {
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entry:
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br i1 0, label %if, label %exit
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if:
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br label %exit
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exit:
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ret void
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}
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...
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---
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name: valid
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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liveins: $w1
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successors: %bb.1(0x40000000), %bb.2(0x40000000); %bb.1(50.00%), %bb.2(50.00%)
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%1:_(s32) = COPY $w1
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%2:_(s32) = G_CONSTANT i32 1
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%3:_(s1) = G_ICMP intpred(ne), %1:_(s32), %2:_
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G_BRCOND %3:_(s1), %bb.1
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G_BR %bb.2.else
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bb.1.if:
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successors: %bb.3(0x80000000)
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%4:_(s32) = G_CONSTANT i32 1
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%5:_(s8) = G_TRUNC %4
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G_BR %bb.3.exit
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bb.2.else:
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successors: %bb.3(0x80000000)
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%6:_(s32) = G_CONSTANT i32 1
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%7:_(s8) = G_TRUNC %6
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G_BR %bb.3.exit
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bb.3.exit:
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%8:_(s8) = G_PHI %5:_(s8), %bb.1, %7:_(s8), %bb.2
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%9:_(s32) = G_ZEXT %8
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$w1 = COPY %9
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...
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---
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name: broken
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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liveins: $w1
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successors: %bb.1(0x40000000), %bb.2(0x40000000); %bb.1(50.00%), %bb.2(50.00%)
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%1:_(s32) = COPY $w1
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%2:_(s32) = G_CONSTANT i32 1
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%3:_(s1) = G_ICMP intpred(ne), %1:_(s32), %2:_
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%4:_(s32) = G_CONSTANT i32 1
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%6:_(s8) = G_CONSTANT i8 2
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G_BRCOND %3:_(s1), %bb.1
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G_BR %bb.2.exit
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bb.1.if:
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successors: %bb.2(0x80000000)
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G_BR %bb.2.exit
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bb.2.exit:
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%5:_(s8) = G_TRUNC %4
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%8:_(s8) = G_PHI %5:_(s8), %bb.0, %6:_(s8), %bb.1
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%9:_(s32) = G_ZEXT %8
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$w1 = COPY %9
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...
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# CHECK-NOT: Bad machine code
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# CHECK-LABEL: Bad machine code: Found PHI instruction after non-PHI
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# CHECK-NEXT: - function: broken
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# CHECK-NEXT: - basic block: %bb.2 exit
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# CHECK-NEXT: - instruction: %6:_(s8) = G_PHI %5:_(s8), %bb.0, %4:_(s8), %bb.1
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# CHECK-NOT: Bad machine code
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