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This update was done with the following bash script: find test/CodeGen -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc.*debug" $NAME; then TEMP=`mktemp -t temp` cp $NAME $TEMP sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \ while read FUNC; do sed -i '' "s/;\(.*\)\([A-Za-z0-9_-]*\):\( *\)$FUNC: *\$/;\1\2-LABEL:\3$FUNC:/g" $TEMP done sed -i '' "s/;\(.*\)-LABEL-LABEL:/;\1-LABEL:/" $TEMP sed -i '' "s/;\(.*\)-NEXT-LABEL:/;\1-NEXT:/" $TEMP sed -i '' "s/;\(.*\)-NOT-LABEL:/;\1-NOT:/" $TEMP sed -i '' "s/;\(.*\)-DAG-LABEL:/;\1-DAG:/" $TEMP mv $TEMP $NAME fi done llvm-svn: 186280
27 lines
839 B
LLVM
27 lines
839 B
LLVM
; RUN: llc -mtriple=aarch64-none-linux-gnu -verify-machineinstrs < %s | FileCheck %s
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define i32 @foo(i32* %var, i1 %cond) {
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; CHECK-LABEL: foo:
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br i1 %cond, label %atomic_ver, label %simple_ver
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simple_ver:
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%oldval = load i32* %var
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%newval = add nsw i32 %oldval, -1
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store i32 %newval, i32* %var
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br label %somewhere
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atomic_ver:
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fence seq_cst
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%val = atomicrmw add i32* %var, i32 -1 monotonic
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fence seq_cst
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br label %somewhere
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; CHECK: dmb
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; CHECK: ldxr
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; CHECK: dmb
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; The key point here is that the second dmb isn't immediately followed by the
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; simple_ver basic block, which LLVM attempted to do when DMB had been marked
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; with isBarrier. For now, look for something that looks like "somewhere".
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; CHECK-NEXT: mov
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somewhere:
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%combined = phi i32 [ %val, %atomic_ver ], [ %newval, %simple_ver]
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ret i32 %combined
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}
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