1 ; RUN: llc < %s -mtriple=thumbv7-apple-darwin -mcpu=cortex-a8 -disable-fp-elim | FileCheck %s
2 ; RUN: llc < %s -mtriple=thumbv7-apple-darwin -mcpu=cortex-a8 -relocation-model=pic -disable-fp-elim | FileCheck %s --check-prefix=PIC
6 ; The generated code is no where near ideal. It's not recognizing the two
7 ; constantpool entries being loaded can be merged into one.
9 @GV = external global i32 ; <i32*> [#uses=2]
11 define void @t1(i32* nocapture %vals, i32 %c) nounwind {
15 %0 = icmp eq i32 %c, 0 ; <i1> [#uses=1]
16 br i1 %0, label %return, label %bb.nph
18 bb.nph: ; preds = %entry
20 ; CHECK: ldr.n r2, LCPI0_0
28 ; PIC: ldr.n r2, LCPI0_0
36 %.pre = load i32* @GV, align 4 ; <i32> [#uses=1]
39 bb: ; preds = %bb, %bb.nph
40 %1 = phi i32 [ %.pre, %bb.nph ], [ %3, %bb ] ; <i32> [#uses=1]
41 %i.03 = phi i32 [ 0, %bb.nph ], [ %4, %bb ] ; <i32> [#uses=2]
42 %scevgep = getelementptr i32* %vals, i32 %i.03 ; <i32*> [#uses=1]
43 %2 = load i32* %scevgep, align 4 ; <i32> [#uses=1]
44 %3 = add nsw i32 %1, %2 ; <i32> [#uses=2]
45 store i32 %3, i32* @GV, align 4
46 %4 = add i32 %i.03, 1 ; <i32> [#uses=2]
47 %exitcond = icmp eq i32 %4, %c ; <i1> [#uses=1]
48 br i1 %exitcond, label %return, label %bb
50 return: ; preds = %bb, %entry
55 define void @t2(i8* %ptr1, i8* %ptr2) nounwind {
58 ; CHECK: adr r{{.}}, #LCPI1_0
59 ; CHECK: vldmia r3, {d0, d1}
60 br i1 undef, label %bb1, label %bb2
64 %indvar = phi i32 [ %indvar.next, %bb1 ], [ 0, %entry ]
65 %tmp1 = shl i32 %indvar, 2
66 %gep1 = getelementptr i8* %ptr1, i32 %tmp1
67 %tmp2 = call <4 x float> @llvm.arm.neon.vld1.v4f32(i8* %gep1)
68 %tmp3 = call <4 x float> @llvm.arm.neon.vmaxs.v4f32(<4 x float> <float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00>, <4 x float> %tmp2)
69 %gep2 = getelementptr i8* %ptr2, i32 %tmp1
70 call void @llvm.arm.neon.vst1.v4f32(i8* %gep2, <4 x float> %tmp3)
71 %indvar.next = add i32 %indvar, 1
72 %cond = icmp eq i32 %indvar.next, 10
73 br i1 %cond, label %bb2, label %bb1
82 declare <4 x float> @llvm.arm.neon.vld1.v4f32(i8*) nounwind readonly
84 declare void @llvm.arm.neon.vst1.v4f32(i8*, <4 x float>) nounwind
86 declare <4 x float> @llvm.arm.neon.vmaxs.v4f32(<4 x float>, <4 x float>) nounwind readnone