| ; Test that functions with dynamic allocas get inlined in a case where |
| ; naively inlining it would result in a miscompilation. |
| ; Functions with dynamic allocas can only be inlined into functions that |
| ; already have dynamic allocas. |
| |
| ; RUN: opt < %s -inline -S | \ |
| ; RUN: grep llvm.stacksave |
| ; RUN: opt < %s -inline -S | not grep callee |
| |
| |
| declare void @ext(i32*) |
| |
| define internal void @callee(i32 %N) { |
| %P = alloca i32, i32 %N ; <i32*> [#uses=1] |
| call void @ext( i32* %P ) |
| ret void |
| } |
| |
| define void @foo(i32 %N) { |
| ; <label>:0 |
| %P = alloca i32, i32 %N ; <i32*> [#uses=1] |
| call void @ext( i32* %P ) |
| br label %Loop |
| |
| Loop: ; preds = %Loop, %0 |
| %count = phi i32 [ 0, %0 ], [ %next, %Loop ] ; <i32> [#uses=2] |
| %next = add i32 %count, 1 ; <i32> [#uses=1] |
| call void @callee( i32 %N ) |
| %cond = icmp eq i32 %count, 100000 ; <i1> [#uses=1] |
| br i1 %cond, label %out, label %Loop |
| |
| out: ; preds = %Loop |
| ret void |
| } |
| |