66 lines
1.6 KiB
Plaintext
66 lines
1.6 KiB
Plaintext
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# RUN: llc -mtriple=aarch64-none-linux-gnu -run-pass machine-sink -o - %s | FileCheck %s
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--- |
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define i8 @g() {
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else.7:
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br i1 undef, label %then.8, label %else.8, !make.implicit !0
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then.8: ; preds = %else.8, %else.7
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%merge = phi i8 [ 1, %else.7 ], [ 0, %else.8 ]
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ret i8 %merge ;1 ;%merge
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else.8: ; preds = %else.7
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%icmp.8 = icmp eq i64 undef, undef
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; ret i8 0 ; added
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br i1 %icmp.8, label %else.11, label %then.8
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else.11: ; preds = %else.8
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ret i8 undef
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}
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!0 = !{}
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...
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---
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name: g
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tracksRegLiveness: true
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registers:
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- { id: 0, class: gpr32all }
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- { id: 1, class: gpr32all }
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- { id: 2, class: gpr32 }
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- { id: 3, class: gpr32 }
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- { id: 4, class: gpr32all }
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- { id: 5, class: gpr32 }
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- { id: 6, class: gpr32all }
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body: |
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; Just check that the pass didn't crash/assert.
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; CHECK-LABEL: name: g
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bb.0.else.7:
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successors: %bb.1, %bb.2
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%2:gpr32 = MOVi32imm 1
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; Sinking the below COPY instruction caused an assert to trigger before
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; requiring getMemOperandWithOffset to return false rather than assert
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; when handling non-memory operations.
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%1:gpr32all = COPY %2
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%3:gpr32 = COPY $wzr
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CBNZW %3, %bb.2
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B %bb.1
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bb.1.then.8:
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%0:gpr32all = PHI %1, %bb.0, %4, %bb.2
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$w0 = COPY %0
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RET_ReallyLR implicit $w0
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bb.2.else.8:
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successors: %bb.3, %bb.1
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%5:gpr32 = COPY $wzr
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%4:gpr32all = COPY %5
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CBNZW %5, %bb.1
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B %bb.3
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bb.3.else.11:
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%6:gpr32all = IMPLICIT_DEF
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$w0 = COPY %6
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RET_ReallyLR implicit $w0
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...
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