forked from OSchip/llvm-project
31 lines
795 B
LLVM
31 lines
795 B
LLVM
; RUN: opt < %s -argpromotion -S | FileCheck %s
|
|
; PR2498
|
|
|
|
; This test tries to convince argpromotion about promoting the load from %A + 2,
|
|
; because there is a load of %A in the entry block
|
|
define internal i32 @callee(i1 %C, i32* %A) {
|
|
; CHECK-LABEL: define internal i32 @callee(
|
|
; CHECK: i1 %C, i32* %A)
|
|
entry:
|
|
; Unconditonally load the element at %A
|
|
%A.0 = load i32, i32* %A
|
|
br i1 %C, label %T, label %F
|
|
|
|
T:
|
|
ret i32 %A.0
|
|
|
|
F:
|
|
; Load the element at offset two from %A. This should not be promoted!
|
|
%A.2 = getelementptr i32, i32* %A, i32 2
|
|
%R = load i32, i32* %A.2
|
|
ret i32 %R
|
|
}
|
|
|
|
define i32 @foo() {
|
|
; CHECK-LABEL: define i32 @foo
|
|
%X = call i32 @callee(i1 false, i32* null) ; <i32> [#uses=1]
|
|
; CHECK: call i32 @callee(i1 false, i32* null)
|
|
ret i32 %X
|
|
}
|
|
|