llvm-6502/test/CodeGen/X86/loop-strength-reduce.ll
Tanya Lattner 33eefffb2b Remove llvm-upgrade and update tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47432 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-21 07:42:26 +00:00

30 lines
1.1 KiB
LLVM

; RUN: llvm-as < %s | llc -march=x86 | \
; RUN: grep {A(} | count 1
;
; Make sure the common loop invariant _A(reg) is hoisted up to preheader.
@A = internal global [16 x [16 x i32]] zeroinitializer, align 32 ; <[16 x [16 x i32]]*> [#uses=2]
define void @test(i32 %row, i32 %N.in) {
entry:
%N = bitcast i32 %N.in to i32 ; <i32> [#uses=1]
%tmp5 = icmp sgt i32 %N.in, 0 ; <i1> [#uses=1]
br i1 %tmp5, label %cond_true, label %return
cond_true: ; preds = %cond_true, %entry
%indvar = phi i32 [ 0, %entry ], [ %indvar.next, %cond_true ] ; <i32> [#uses=2]
%i.0.0 = bitcast i32 %indvar to i32 ; <i32> [#uses=2]
%tmp2 = add i32 %i.0.0, 1 ; <i32> [#uses=1]
%tmp = getelementptr [16 x [16 x i32]]* @A, i32 0, i32 %row, i32 %tmp2 ; <i32*> [#uses=1]
store i32 4, i32* %tmp
%tmp5.upgrd.1 = add i32 %i.0.0, 2 ; <i32> [#uses=1]
%tmp7 = getelementptr [16 x [16 x i32]]* @A, i32 0, i32 %row, i32 %tmp5.upgrd.1 ; <i32*> [#uses=1]
store i32 5, i32* %tmp7
%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, %entry
ret void
}