67 lines
2.7 KiB
Plaintext
67 lines
2.7 KiB
Plaintext
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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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# RUN: llc -mtriple aarch64 -run-pass=legalizer -verify-machineinstrs %s -o - | FileCheck %s
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# This test checks we don't crash when doing zext(trunc) legalizer combines.
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---
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name: zext_trunc_dead_inst_crash
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alignment: 4
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tracksRegLiveness: true
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body: |
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; CHECK-LABEL: name: zext_trunc_dead_inst_crash
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; CHECK: bb.0:
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; CHECK: successors: %bb.1(0x80000000)
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; CHECK: [[DEF:%[0-9]+]]:_(s16) = G_IMPLICIT_DEF
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; CHECK: bb.1:
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; CHECK: successors: %bb.2(0x80000000)
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; CHECK: [[PHI:%[0-9]+]]:_(s16) = G_PHI %32(s16), %bb.2, [[DEF]](s16), %bb.0
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; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 255
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; CHECK: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[PHI]](s16)
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; CHECK: [[AND:%[0-9]+]]:_(s32) = G_AND [[ANYEXT]], [[C]]
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; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 46
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; CHECK: [[ICMP:%[0-9]+]]:_(s32) = G_ICMP intpred(eq), [[AND]](s32), [[C1]]
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; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY [[ICMP]](s32)
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; CHECK: [[DEF1:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
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; CHECK: [[OR:%[0-9]+]]:_(s32) = G_OR [[COPY]], [[DEF1]]
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; CHECK: [[COPY1:%[0-9]+]]:_(s32) = COPY [[ANYEXT]](s32)
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; CHECK: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 -33
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; CHECK: [[AND1:%[0-9]+]]:_(s32) = G_AND [[COPY1]], [[C2]]
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; CHECK: [[COPY2:%[0-9]+]]:_(s32) = COPY [[AND1]](s32)
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; CHECK: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 -65
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; CHECK: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[COPY2]], [[C3]]
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; CHECK: [[COPY3:%[0-9]+]]:_(s32) = COPY [[ADD]](s32)
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; CHECK: [[AND2:%[0-9]+]]:_(s32) = G_AND [[COPY3]], [[C]]
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; CHECK: [[C4:%[0-9]+]]:_(s32) = G_CONSTANT i32 26
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; CHECK: [[ICMP1:%[0-9]+]]:_(s32) = G_ICMP intpred(ult), [[AND2]](s32), [[C4]]
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; CHECK: [[COPY4:%[0-9]+]]:_(s32) = COPY [[ICMP1]](s32)
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; CHECK: [[COPY5:%[0-9]+]]:_(s32) = COPY [[OR]](s32)
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; CHECK: [[OR1:%[0-9]+]]:_(s32) = G_OR [[COPY4]], [[COPY5]]
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; CHECK: [[TRUNC:%[0-9]+]]:_(s1) = G_TRUNC [[OR1]](s32)
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; CHECK: G_BRCOND [[TRUNC]](s1), %bb.2
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; CHECK: bb.2:
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; CHECK: successors: %bb.1(0x80000000)
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; CHECK: [[C5:%[0-9]+]]:_(s16) = G_CONSTANT i16 64
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; CHECK: G_BR %bb.1
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bb.1:
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%1:_(s8) = G_CONSTANT i8 46
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%3:_(s1) = G_IMPLICIT_DEF
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%5:_(s8) = G_CONSTANT i8 -33
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%7:_(s8) = G_CONSTANT i8 -65
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%9:_(s8) = G_CONSTANT i8 26
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%13:_(s8) = G_IMPLICIT_DEF
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bb.2:
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%0:_(s8) = G_PHI %12(s8), %bb.4, %13(s8), %bb.1
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%2:_(s1) = G_ICMP intpred(eq), %0(s8), %1
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%4:_(s1) = G_OR %2, %3
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%6:_(s8) = G_AND %0, %5
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%8:_(s8) = G_ADD %6, %7
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%10:_(s1) = G_ICMP intpred(ult), %8(s8), %9
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%11:_(s1) = G_OR %10, %4
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G_BRCOND %11(s1), %bb.4
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bb.4:
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%12:_(s8) = G_CONSTANT i8 64
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G_BR %bb.2
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...
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