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61599008e2
Add an assert that checks whether liveins are up to date before they are used. - Do not print liveins into .mir files anymore in situations where they are out of date anyway. - The assert in the RegisterScavenger is superseded by the new one in livein_begin(). - Skip parts of the liveness updating logic in IfConversion.cpp when liveness isn't tracked anymore (just enough to avoid hitting the new assert()). Differential Revision: https://reviews.llvm.org/D27562 llvm-svn: 291169
36 lines
1.0 KiB
YAML
36 lines
1.0 KiB
YAML
# RUN: llc -mtriple=aarch64-none-linux-gnu -run-pass machine-scheduler -verify-machineinstrs -o - %s | FileCheck %s
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--- |
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define i64 @load_imp-def(i64* nocapture %P, i32 %v) {
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entry:
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%0 = bitcast i64* %P to i32*
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%1 = load i32, i32* %0
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%conv = zext i32 %1 to i64
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%arrayidx19 = getelementptr inbounds i64, i64* %P, i64 1
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%arrayidx1 = bitcast i64* %arrayidx19 to i32*
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store i32 %v, i32* %arrayidx1
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%2 = load i64, i64* %arrayidx19
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%and = and i64 %2, 4294967295
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%add = add nuw nsw i64 %and, %conv
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ret i64 %add
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}
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...
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---
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# CHECK-LABEL: name: load_imp-def
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# CHECK: bb.0.entry:
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# CHECK: LDRWui %x0, 0
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# CHECK: LDRWui %x0, 1
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# CHECK: STRWui %w1, %x0, 2
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name: load_imp-def
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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liveins: %w1, %x0
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%w8 = LDRWui %x0, 1, implicit-def %x8 :: (load 4 from %ir.0)
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STRWui killed %w1, %x0, 2 :: (store 4 into %ir.arrayidx1)
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%w9 = LDRWui killed %x0, 0, implicit-def %x9 :: (load 4 from %ir.arrayidx19, align 8)
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%x0 = ADDXrr killed %x9, killed %x8
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RET_ReallyLR implicit %x0
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...
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