; The loop sinker was running from the bottom of the loop to the top, causing
; it to miss opportunities to sink instructions that depended on sinking other
; instructions from the loop. Instead they got hoisted, which is better than
; leaving them in the loop, but increases register pressure pointlessly.
; RUN: llvm-as < %s | opt -licm | llvm-dis | \
; RUN: %prcontext getelementptr 1 | grep Out:
%Ty = type { i32, i32 }
@X = external global %Ty ; <%Ty*> [#uses=1]
define i32 @test() {
br label %Loop
Loop: ; preds = %Loop, %0
%dead = getelementptr %Ty* @X, i64 0, i32 0 ; <i32*> [#uses=1]
%sunk2 = load i32* %dead ; <i32> [#uses=1]
br i1 false, label %Loop, label %Out
Out: ; preds = %Loop
ret i32 %sunk2
}