diff options
| -rw-r--r-- | lib/Transforms/Scalar/CodeGenPrepare.cpp | 3 | ||||
| -rw-r--r-- | test/Transforms/CodeGenPrepare/basic.ll | 5 |
2 files changed, 7 insertions, 1 deletions
diff --git a/lib/Transforms/Scalar/CodeGenPrepare.cpp b/lib/Transforms/Scalar/CodeGenPrepare.cpp index 72c8bf3047..3496aa20ab 100644 --- a/lib/Transforms/Scalar/CodeGenPrepare.cpp +++ b/lib/Transforms/Scalar/CodeGenPrepare.cpp @@ -1071,6 +1071,9 @@ bool CodeGenPrepare::OptimizeInst(Instruction *I) { if (CallInst *CI = dyn_cast<CallInst>(I)) return OptimizeCallInst(CI); + if (isa<TerminatorInst>(I)) + return ConstantFoldTerminator(I->getParent()); + return false; } diff --git a/test/Transforms/CodeGenPrepare/basic.ll b/test/Transforms/CodeGenPrepare/basic.ll index c3e57b4d20..a1cdf45553 100644 --- a/test/Transforms/CodeGenPrepare/basic.ll +++ b/test/Transforms/CodeGenPrepare/basic.ll @@ -4,13 +4,16 @@ target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f3 target triple = "x86_64-apple-darwin10.0.0" ; CHECK: @test1 +; objectsize should fold to a constant, which causes the branch to fold to an +; uncond branch. +; rdar://8785296 define i32 @test1(i8* %ptr) nounwind ssp noredzone align 2 { entry: %0 = tail call i64 @llvm.objectsize.i64(i8* %ptr, i1 false) %1 = icmp ugt i64 %0, 3 br i1 %1, label %T, label %trap -; CHECK: br i1 true, label +; CHECK: br label %T trap: ; preds = %0, %entry tail call void @llvm.trap() noreturn nounwind unreachable |