1
0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-25 12:12:47 +01:00
llvm-mirror/test/CodeGen/X86/loop-strength-reduce-3.ll
Dan Gohman c40eb525ad Reapply the new LoopStrengthReduction code, with compile time and
bug fixes, and with improved heuristics for analyzing foreign-loop
addrecs.

This change also flattens IVUsers, eliminating the stride-oriented
groupings, which makes it easier to work with.

llvm-svn: 95975
2010-02-12 10:34:29 +00:00

34 lines
1.2 KiB
LLVM

; RUN: llc < %s -mtriple=i386-apple-darwin -relocation-model=dynamic-no-pic | FileCheck %s
; CHECK: align
; CHECK: movl $4, -4(%ecx)
; CHECK: movl $5, (%ecx)
; CHECK: addl $4, %ecx
; CHECK: decl %eax
; CHECK: jne
@A = global [16 x [16 x i32]] zeroinitializer, align 32 ; <[16 x [16 x i32]]*> [#uses=2]
define void @test(i32 %row, i32 %N.in) nounwind {
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
}