49 lines
1.4 KiB
Plaintext
49 lines
1.4 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=aarch64-prelegalizer-combiner -verify-machineinstrs %s -o - | FileCheck %s
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name: pat1
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $x0, $x1
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; Fold ((0-A) + B) -> B - A
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; CHECK-LABEL: name: pat1
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; CHECK: liveins: $x0, $x1
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; CHECK: %copy1:_(s64) = COPY $x0
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; CHECK: %copy2:_(s64) = COPY $x1
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; CHECK: %add:_(s64) = G_SUB %copy2, %copy1
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; CHECK: $x0 = COPY %add(s64)
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; CHECK: RET_ReallyLR implicit $x0
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%copy1:_(s64) = COPY $x0
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%copy2:_(s64) = COPY $x1
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%zero:_(s64) = G_CONSTANT i64 0
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%sub:_(s64) = G_SUB %zero, %copy1
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%add:_(s64) = G_ADD %sub, %copy2
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$x0 = COPY %add(s64)
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RET_ReallyLR implicit $x0
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...
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---
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name: pat2
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $x0, $x1
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; Fold (A + (0-B)) -> A - B
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; CHECK-LABEL: name: pat2
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; CHECK: liveins: $x0, $x1
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; CHECK: %copy1:_(s64) = COPY $x0
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; CHECK: %copy2:_(s64) = COPY $x1
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; CHECK: %add:_(s64) = G_SUB %copy1, %copy2
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; CHECK: $x0 = COPY %add(s64)
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; CHECK: RET_ReallyLR implicit $x0
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%copy1:_(s64) = COPY $x0
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%copy2:_(s64) = COPY $x1
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%zero:_(s64) = G_CONSTANT i64 0
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%sub:_(s64) = G_SUB %zero, %copy2
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%add:_(s64) = G_ADD %copy1, %sub
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$x0 = COPY %add(s64)
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RET_ReallyLR implicit $x0
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...
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