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authorEric Christopher <echristo@gmail.com>2019-04-17 04:52:47 +0000
committerEric Christopher <echristo@gmail.com>2019-04-17 04:52:47 +0000
commitcee313d288a4faf0355d76fb6e0e927e211d08a5 (patch)
treed386075318d761197779a96e5d8fc0dc7b06342b /llvm/test/Transforms/GlobalOpt/localize-constexpr.ll
parentc3d6a929fdd92fd06d4304675ade8d7210ee711a (diff)
downloadbcm5719-llvm-cee313d288a4faf0355d76fb6e0e927e211d08a5.tar.gz
bcm5719-llvm-cee313d288a4faf0355d76fb6e0e927e211d08a5.zip
Revert "Temporarily Revert "Add basic loop fusion pass.""
The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
Diffstat (limited to 'llvm/test/Transforms/GlobalOpt/localize-constexpr.ll')
-rw-r--r--llvm/test/Transforms/GlobalOpt/localize-constexpr.ll28
1 files changed, 28 insertions, 0 deletions
diff --git a/llvm/test/Transforms/GlobalOpt/localize-constexpr.ll b/llvm/test/Transforms/GlobalOpt/localize-constexpr.ll
new file mode 100644
index 00000000000..3fa7db89b04
--- /dev/null
+++ b/llvm/test/Transforms/GlobalOpt/localize-constexpr.ll
@@ -0,0 +1,28 @@
+; RUN: opt -S < %s -globalopt | FileCheck %s
+
+@G = internal global i32 42
+
+define i8 @f() norecurse {
+; CHECK-LABEL: @f
+; CHECK: alloca
+; CHECK-NOT: @G
+; CHECK: }
+ store i32 42, i32* @G
+ %a = load i8, i8* bitcast (i32* @G to i8*)
+ ret i8 %a
+}
+
+@H = internal global i32 42
+@Halias = alias i32, i32* @H
+
+; @H can't be localized because @Halias uses it, and @Halias can't be converted to an instruction.
+define i8 @g() norecurse {
+; CHECK-LABEL: @g
+; CHECK-NOT: alloca
+; CHECK: @H
+; CHECK: }
+ store i32 42, i32* @H
+ %a = load i8, i8* bitcast (i32* @H to i8*)
+ ret i8 %a
+}
+
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