1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2 ; RUN: llc < %s -mtriple=armv7-apple-darwin -mcpu=cortex-a8 | FileCheck %s
3 ; Check if the f32 load / store pair are optimized to i32 load / store.
6 define void @t(i32 %width, float* nocapture %src, float* nocapture %dst, i32 %index) nounwind {
8 ; CHECK: @ %bb.0: @ %entry
9 ; CHECK-NEXT: cmp r0, #0
11 ; CHECK-NEXT: LBB0_1: @ %bb
12 ; CHECK-NEXT: @ =>This Inner Loop Header: Depth=1
13 ; CHECK-NEXT: ldr r9, [r1], r3
14 ; CHECK-NEXT: subs r0, r0, #1
15 ; CHECK-NEXT: str r9, [r2], #4
16 ; CHECK-NEXT: bne LBB0_1
17 ; CHECK-NEXT: @ %bb.2: @ %return
20 %src6 = bitcast float* %src to i8*
21 %0 = icmp eq i32 %width, 0
22 br i1 %0, label %return, label %bb
25 %j.05 = phi i32 [ %2, %bb ], [ 0, %entry ]
26 %tmp = mul i32 %j.05, %index
27 %uglygep = getelementptr i8, i8* %src6, i32 %tmp
28 %src_addr.04 = bitcast i8* %uglygep to float*
29 %dst_addr.03 = getelementptr float, float* %dst, i32 %j.05
30 %1 = load float, float* %src_addr.04, align 4
31 store float %1, float* %dst_addr.03, align 4
33 %exitcond = icmp eq i32 %2, %width
34 br i1 %exitcond, label %return, label %bb
40 @a1 = local_unnamed_addr global float 0.000000e+00, align 4
41 @a2 = local_unnamed_addr global float 0.000000e+00, align 4
42 @a3 = local_unnamed_addr global float 0.000000e+00, align 4
43 @a4 = local_unnamed_addr global float 0.000000e+00, align 4
44 @a5 = local_unnamed_addr global float 0.000000e+00, align 4
45 @a6 = local_unnamed_addr global float 0.000000e+00, align 4
46 @a7 = local_unnamed_addr global float 0.000000e+00, align 4
47 @a8 = local_unnamed_addr global float 0.000000e+00, align 4
50 declare void @_Z3fooddddddddddddddd(float, float, float, float, float, float, float, float)
52 ; Because this test function is trying to pass float argument by stack,
53 ; it can be optimized to i32 load / store
54 define signext i32 @test() {
55 %1 = load float, float* @a1, align 4
56 %2 = load float, float* @a2, align 4
57 %3 = load float, float* @a3, align 4
58 %4 = load float, float* @a4, align 4
59 %5 = load float, float* @a5, align 4
60 %6 = load float, float* @a6, align 4
61 %7 = load float, float* @a7, align 4
62 %8 = load float, float* @a8, align 4
63 tail call void @_Z3fooddddddddddddddd(float %1, float %2, float %3, float %4, float %5, float %6, float %7, float %8)
68 ; CHECK: ldr r3, [pc, r3]
69 ; CHECK: ldr r2, [pc, r2]
70 ; CHECK: ldr r1, [pc, r1]
71 ; CHECK: ldr r0, [pc, r0]
72 ; CHECK: ldr r9, [pc, r9]
73 ; CHECK: ldr r12, [pc, r12]
74 ; CHECK: ldr lr, [pc, lr]
75 ; CHECK: stm sp, {r9, r12, lr}
76 ; CHECK: ldr r4, [pc, r4]
77 ; CHECK: str r4, [sp, #12]
78 ; CHECK: bl __Z3fooddddddddddddddd