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2942e6356b
in the QMTest Testrunner tests. Please note that putting output files in the Output directory no longer works, as QMTest does not build Output directories anymore (nor does the test run in a separate subdirectory, anyway). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12466 91177308-0d34-0410-b5e6-96231b3b80d8
36 lines
987 B
LLVM
36 lines
987 B
LLVM
; Test a bunch of cases where the cfg simplification code should
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; be able to fold PHI nodes into computation in common cases. Folding the PHI
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; nodes away allows the branches to be eliminated, performing a simple form of
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; 'if conversion'.
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; RUN: llvm-as < %s | opt -simplifycfg | llvm-dis > %t.xform
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; RUN: not grep phi %t.xform && grep ret %t.xform
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declare void %use(bool)
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declare void %use(int)
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void %test(bool %c, int %V) {
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br bool %c, label %T, label %F
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T:
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br label %F
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F:
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%B1 = phi bool [true, %0], [false, %T]
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%B2 = phi bool [true, %T], [false, %0]
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%I1 = phi int [1, %T], [0, %0]
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%I2 = phi int [1, %0], [0, %T]
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%I3 = phi int [17, %T], [0, %0]
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%I4 = phi int [17, %T], [5, %0]
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%I5 = phi int [%V, %T], [0, %0]
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%I6 = phi int [%V, %0], [0, %T]
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call void %use(bool %B1)
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call void %use(bool %B2)
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call void %use(int %I1)
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call void %use(int %I2)
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call void %use(int %I3)
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call void %use(int %I4)
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call void %use(int %I5)
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call void %use(int %I6)
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ret void
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}
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