diff options
| -rw-r--r-- | llvm/lib/Transforms/IPO/InlineAlways.cpp | 2 | ||||
| -rw-r--r-- | llvm/test/Transforms/Inline/always-inline.ll | 38 |
2 files changed, 39 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/IPO/InlineAlways.cpp b/llvm/lib/Transforms/IPO/InlineAlways.cpp index a977027eed1..664ddf6f7a2 100644 --- a/llvm/lib/Transforms/IPO/InlineAlways.cpp +++ b/llvm/lib/Transforms/IPO/InlineAlways.cpp @@ -83,7 +83,7 @@ static bool isInlineViable(Function &F) { // Disallow calls which expose returns-twice to a function not previously // attributed as such. - if (ReturnsTwice && CS.isCall() && + if (!ReturnsTwice && CS.isCall() && cast<CallInst>(CS.getInstruction())->canReturnTwice()) return false; } diff --git a/llvm/test/Transforms/Inline/always-inline.ll b/llvm/test/Transforms/Inline/always-inline.ll index 40091d7518a..bfd8762713d 100644 --- a/llvm/test/Transforms/Inline/always-inline.ll +++ b/llvm/test/Transforms/Inline/always-inline.ll @@ -40,3 +40,41 @@ define void @outer2(i32 %N) { call void @inner2( i32 %N ) ret void } + +declare i32 @a() returns_twice +declare i32 @b() returns_twice + +define i32 @inner3() alwaysinline { +entry: + %call = call i32 @a() returns_twice + %add = add nsw i32 1, %call + ret i32 %add +} +define i32 @outer3() { +entry: +; CHECK: @outer3 +; CHECK-NOT: call i32 @a +; CHECK: ret + + %call = call i32 @inner3() + %add = add nsw i32 1, %call + ret i32 %add +} + +define i32 @inner4() alwaysinline returns_twice { +entry: + %call = call i32 @b() returns_twice + %add = add nsw i32 1, %call + ret i32 %add +} + +define i32 @outer4() { +entry: +; CHECK: @outer4 +; CHECK: call i32 @b() +; CHECK: ret + + %call = call i32 @inner4() returns_twice + %add = add nsw i32 1, %call + ret i32 %add +} |
