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| author | Rafael Espindola <rafael.espindola@gmail.com> | 2013-07-20 23:33:15 +0000 |
|---|---|---|
| committer | Rafael Espindola <rafael.espindola@gmail.com> | 2013-07-20 23:33:15 +0000 |
| commit | 64f2f910bd48c123a6b5945ebe90b018f7bea4d5 (patch) | |
| tree | 22a781d2a92c90dc68f3fa31df2ea7ff47d1835d /test | |
| parent | c5b8b590ee43d05816bf94ae54c77cb6275b98e4 (diff) | |
| download | external_llvm-64f2f910bd48c123a6b5945ebe90b018f7bea4d5.zip external_llvm-64f2f910bd48c123a6b5945ebe90b018f7bea4d5.tar.gz external_llvm-64f2f910bd48c123a6b5945ebe90b018f7bea4d5.tar.bz2 | |
Don't crash when llvm.compiler.used becomes empty.
GlobalOpt simplifies llvm.compiler.used by removing any members that are also
in the more strict llvm.used. Handle the special case where llvm.compiler.used
becomes empty.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186778 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/Transforms/GlobalOpt/compiler-used.ll | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/test/Transforms/GlobalOpt/compiler-used.ll b/test/Transforms/GlobalOpt/compiler-used.ll new file mode 100644 index 0000000..a710d27 --- /dev/null +++ b/test/Transforms/GlobalOpt/compiler-used.ll @@ -0,0 +1,16 @@ +; RUN: opt < %s -globalopt -S | FileCheck %s + +; Test that when all members of llvm.compiler.used are found to be redundant +; we delete it instead of crashing. + +define void @foo() { + ret void +} + +@llvm.used = appending global [1 x i8*] [i8* bitcast (void ()* @foo to i8*)], section "llvm.metadata" + +@llvm.compiler.used = appending global [1 x i8*] [i8* bitcast (void ()* @foo to i8*)], section "llvm.metadata" + +; CHECK-NOT: @llvm.compiler.used +; CHECK: @llvm.used = appending global [1 x i8*] [i8* bitcast (void ()* @foo to i8*)], section "llvm.metadata" +; CHECK-NOT: @llvm.compiler.used |