26 lines
936 B
Text
26 lines
936 B
Text
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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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# RUN: llc -o - -mtriple=aarch64-unknown-unknown -run-pass=aarch64-prelegalizer-combiner -verify-machineinstrs %s | FileCheck %s
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# Check that we don't miscompile this into G_UDIVREM because of the different
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# first operands.
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---
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name: no_combine_divrem_different_src1
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body: |
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bb.1:
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liveins: $w0
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; CHECK-LABEL: name: no_combine_divrem_different_src1
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; CHECK: liveins: $w0
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $w0
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; CHECK-NEXT: [[UREM:%[0-9]+]]:_(s32) = G_UREM [[COPY]], [[COPY]]
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; CHECK-NEXT: [[UDIV:%[0-9]+]]:_(s32) = G_UDIV [[UREM]], [[COPY]]
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; CHECK-NEXT: $w0 = COPY [[UDIV]](s32)
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; CHECK-NEXT: RET_ReallyLR implicit $w0
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%0:_(s32) = COPY $w0
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%1:_(s32) = G_UREM %0, %0
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%2:_(s32) = G_UDIV %1, %0
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$w0 = COPY %2(s32)
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RET_ReallyLR implicit $w0
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...
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