45 lines
1.2 KiB
YAML
45 lines
1.2 KiB
YAML
# RUN: llc -run-pass=codegenprepare -o - %s | FileCheck %s
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# REQUIRES: default_triple
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# This testcase without the accompanying fix triggers the assert
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# "Replacement PHI node is already replaced."
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--- |
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define void @f1() {
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entry:
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%arrayidx = getelementptr inbounds [2 x i16], ptr undef, i16 0, i16 2
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br label %for.cond
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for.cond:
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%0 = phi ptr [ %arrayidx, %entry ], [ %5, %cleanup ]
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%1 = phi ptr [ %arrayidx, %entry ], [ %7, %cleanup ]
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br label %for.body
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for.body:
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%2 = phi ptr [ %1, %for.cond ], [ %7, %cleanup ]
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%3 = phi ptr [ %0, %for.cond ], [ %7, %cleanup ]
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%4 = phi ptr [ %0, %for.cond ], [ %7, %cleanup ]
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br i1 false, label %for.cond2, label %if.then
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if.then:
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store i32 undef, ptr %2, align 1
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unreachable
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for.cond2:
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%5 = phi ptr [ %4, %for.body ], [ %5, %if.then5 ], [ undef, %for.cond2 ]
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%6 = phi ptr [ %3, %for.body ], [ %6, %if.then5 ], [ undef, %for.cond2 ]
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%7 = phi ptr [ %2, %for.body ], [ %6, %if.then5 ], [ undef, %for.cond2 ]
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br i1 undef, label %for.cond2, label %if.then5
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if.then5:
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br i1 undef, label %cleanup, label %for.cond2
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cleanup:
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br i1 true, label %for.cond, label %for.body
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}
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...
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# A check to verify that something got through.
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# CHECK-LABEL: entry:
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