F.getAttributes().hasAttribute(AttributeSet::FunctionIndex,
Attribute::ReturnsTwice);
for (Function::iterator BI = F.begin(), BE = F.end(); BI != BE; ++BI) {
- // Disallow inlining of functions which contain an indirect branch,
- // unless the always_inline attribute is set.
- // The attribute serves as a assertion that no local address
- // like a block label can escpape the function.
- // Revisit enabling inlining for functions with indirect branches
- // when a more sophisticated espape/points-to analysis becomes available.
- if (isa<IndirectBrInst>(BI->getTerminator()) &&
- !F.hasFnAttribute(Attribute::AlwaysInline))
+ // Disallow inlining of functions which contain an indirect branch.
+ if (isa<IndirectBrInst>(BI->getTerminator()))
return false;
for (BasicBlock::iterator II = BI->begin(), IE = BI->end(); II != IE;
+++ /dev/null
-; RUN: opt < %s -O3 -S | FileCheck %s
-@gv = external global i32
-
-define i32 @main() nounwind {
-; CHECK-NOT: call i32 @foo
- %1 = load i32* @gv, align 4
- %2 = tail call i32 @foo(i32 %1)
- unreachable
-}
-
-define internal i32 @foo(i32) alwaysinline {
- br label %2
-
-; <label>:2 ; preds = %8, %1
- %3 = phi i32 [ %0, %1 ], [ %10, %8 ]
- %4 = phi i8* [ blockaddress(@foo, %2), %1 ], [ %6, %8 ]
- %5 = icmp eq i32 %3, 1
- %6 = select i1 %5, i8* blockaddress(@foo, %8), i8* %4
- %7 = add nsw i32 %3, -1
- br label %8
-
-; <label>:8 ; preds = %8, %2
- %9 = phi i32 [ %7, %2 ], [ %10, %8 ]
- %10 = add nsw i32 %9, -1
- indirectbr i8* %6, [label %2, label %8]
-}