YouCompleteMe/cpp/llvm/test/Transforms/Inline/2009-01-08-NoInlineDynamicAlloca.ll
2012-07-05 17:51:06 -07:00

37 lines
1.0 KiB
LLVM

; RUN: opt < %s -inline -S | grep call
; Do not inline calls to variable-sized alloca.
@q = common global i8* null ; <i8**> [#uses=1]
define i8* @a(i32 %i) nounwind {
entry:
%i_addr = alloca i32 ; <i32*> [#uses=2]
%retval = alloca i8* ; <i8**> [#uses=1]
%p = alloca i8* ; <i8**> [#uses=2]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
store i32 %i, i32* %i_addr
%0 = load i32* %i_addr, align 4 ; <i32> [#uses=1]
%1 = alloca i8, i32 %0 ; <i8*> [#uses=1]
store i8* %1, i8** %p, align 4
%2 = load i8** %p, align 4 ; <i8*> [#uses=1]
store i8* %2, i8** @q, align 4
br label %return
return: ; preds = %entry
%retval1 = load i8** %retval ; <i8*> [#uses=1]
ret i8* %retval1
}
define void @b(i32 %i) nounwind {
entry:
%i_addr = alloca i32 ; <i32*> [#uses=2]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
store i32 %i, i32* %i_addr
%0 = load i32* %i_addr, align 4 ; <i32> [#uses=1]
%1 = call i8* @a(i32 %0) nounwind ; <i8*> [#uses=0]
br label %return
return: ; preds = %entry
ret void
}