llvm-6502/test/CodeGen/X86/loop-hoist.ll
2009-09-08 23:54:48 +00:00

28 lines
920 B
LLVM

; LSR should hoist the load from the "Arr" stub out of the loop.
; RUN: llc < %s -relocation-model=dynamic-no-pic -mtriple=i686-apple-darwin8.7.2 | FileCheck %s
; CHECK: _foo:
; CHECK: L_Arr$non_lazy_ptr
; CHECK: LBB1_1: ## %cond_true
@Arr = external global [0 x i32] ; <[0 x i32]*> [#uses=1]
define void @foo(i32 %N.in, i32 %x) nounwind {
entry:
%N = bitcast i32 %N.in to i32 ; <i32> [#uses=1]
br label %cond_true
cond_true: ; preds = %cond_true, %entry
%indvar = phi i32 [ %x, %entry ], [ %indvar.next, %cond_true ] ; <i32> [#uses=2]
%i.0.0 = bitcast i32 %indvar to i32 ; <i32> [#uses=2]
%tmp = getelementptr [0 x i32]* @Arr, i32 0, i32 %i.0.0 ; <i32*> [#uses=1]
store i32 %i.0.0, i32* %tmp
%indvar.next = add i32 %indvar, 1 ; <i32> [#uses=2]
%exitcond = icmp eq i32 %indvar.next, %N ; <i1> [#uses=1]
br i1 %exitcond, label %return, label %cond_true
return: ; preds = %cond_true
ret void
}