1 ; RUN: llc < %s -mtriple=thumbv7-apple-darwin -mcpu=cortex-a8 -verify-machineinstrs
2 ; RUN: llc < %s -mtriple=thumbv7-apple-darwin -mcpu=cortex-a8 -verify-machineinstrs -O0
3 target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:64:64-v128:128:128-a0:0:32-n32"
4 target triple = "thumbv7-apple-darwin10"
6 ; This function would crash LiveIntervalAnalysis by creating a chain of 4 INSERT_SUBREGs of the same register.
7 define arm_apcscc void @NEON_vst4q_u32(i32* nocapture %sp0, i32* nocapture %sp1, i32* nocapture %sp2, i32* nocapture %sp3, i32* %dp) nounwind {
9 %0 = bitcast i32* %sp0 to <4 x i32>* ; <<4 x i32>*> [#uses=1]
10 %1 = load <4 x i32>, <4 x i32>* %0, align 16 ; <<4 x i32>> [#uses=1]
11 %2 = bitcast i32* %sp1 to <4 x i32>* ; <<4 x i32>*> [#uses=1]
12 %3 = load <4 x i32>, <4 x i32>* %2, align 16 ; <<4 x i32>> [#uses=1]
13 %4 = bitcast i32* %sp2 to <4 x i32>* ; <<4 x i32>*> [#uses=1]
14 %5 = load <4 x i32>, <4 x i32>* %4, align 16 ; <<4 x i32>> [#uses=1]
15 %6 = bitcast i32* %sp3 to <4 x i32>* ; <<4 x i32>*> [#uses=1]
16 %7 = load <4 x i32>, <4 x i32>* %6, align 16 ; <<4 x i32>> [#uses=1]
17 %8 = bitcast i32* %dp to i8* ; <i8*> [#uses=1]
18 tail call void @llvm.arm.neon.vst4.p0i8.v4i32(i8* %8, <4 x i32> %1, <4 x i32> %3, <4 x i32> %5, <4 x i32> %7, i32 1)
22 declare void @llvm.arm.neon.vst4.p0i8.v4i32(i8*, <4 x i32>, <4 x i32>, <4 x i32>, <4 x i32>, i32) nounwind
24 @sbuf = common global [16 x i32] zeroinitializer, align 16 ; <[16 x i32]*> [#uses=5]
25 @dbuf = common global [16 x i32] zeroinitializer ; <[16 x i32]*> [#uses=2]
27 ; This function creates 4 chained INSERT_SUBREGS and then invokes the register scavenger.
28 ; The first INSERT_SUBREG needs an <undef> use operand for that to work.
29 define arm_apcscc i32 @main() nounwind {
33 bb: ; preds = %bb, %bb.nph
34 %0 = phi i32 [ 0, %bb.nph ], [ %1, %bb ] ; <i32> [#uses=4]
35 %scevgep = getelementptr [16 x i32], [16 x i32]* @sbuf, i32 0, i32 %0 ; <i32*> [#uses=1]
36 %scevgep5 = getelementptr [16 x i32], [16 x i32]* @dbuf, i32 0, i32 %0 ; <i32*> [#uses=1]
37 store i32 %0, i32* %scevgep, align 4
38 store i32 -1, i32* %scevgep5, align 4
39 %1 = add nsw i32 %0, 1 ; <i32> [#uses=2]
40 %exitcond = icmp eq i32 %1, 16 ; <i1> [#uses=1]
41 br i1 %exitcond, label %bb2, label %bb
44 %2 = load <4 x i32>, <4 x i32>* bitcast ([16 x i32]* @sbuf to <4 x i32>*), align 16 ; <<4 x i32>> [#uses=1]
45 %3 = load <4 x i32>, <4 x i32>* bitcast (i32* getelementptr inbounds ([16 x i32], [16 x i32]* @sbuf, i32 0, i32 4) to <4 x i32>*), align 16 ; <<4 x i32>> [#uses=1]
46 %4 = load <4 x i32>, <4 x i32>* bitcast (i32* getelementptr inbounds ([16 x i32], [16 x i32]* @sbuf, i32 0, i32 8) to <4 x i32>*), align 16 ; <<4 x i32>> [#uses=1]
47 %5 = load <4 x i32>, <4 x i32>* bitcast (i32* getelementptr inbounds ([16 x i32], [16 x i32]* @sbuf, i32 0, i32 12) to <4 x i32>*), align 16 ; <<4 x i32>> [#uses=1]
48 tail call void @llvm.arm.neon.vst4.p0i8.v4i32(i8* bitcast ([16 x i32]* @dbuf to i8*), <4 x i32> %2, <4 x i32> %3, <4 x i32> %4, <4 x i32> %5, i32 1) nounwind
53 ; Make sure the DPair register class can spill.
54 define void @pr12389(i8* %p) nounwind ssp {
56 %vld1 = tail call <4 x float> @llvm.arm.neon.vld1.v4f32.p0i8(i8* %p, i32 1)
57 tail call void asm sideeffect "", "~{q0},~{q1},~{q2},~{q3},~{q4},~{q5},~{q6},~{q7},~{q8},~{q9},~{q10},~{q11},~{q12},~{q13},~{q14},~{q15}"() nounwind
58 tail call void @llvm.arm.neon.vst1.p0i8.v4f32(i8* %p, <4 x float> %vld1, i32 1)
62 declare <4 x float> @llvm.arm.neon.vld1.v4f32.p0i8(i8*, i32) nounwind readonly
64 declare void @llvm.arm.neon.vst1.p0i8.v4f32(i8*, <4 x float>, i32) nounwind
66 ; <rdar://problem/11101911>
67 ; When an strd is expanded into two str instructions, make sure the first str
68 ; doesn't kill the base register. This can happen if the base register is the
69 ; same as the data register.
70 %class = type { i8*, %class*, i32 }
71 define void @f11101911(%class* %this, i32 %num) ssp align 2 {
73 %p1 = getelementptr inbounds %class, %class* %this, i32 0, i32 1
74 %p2 = getelementptr inbounds %class, %class* %this, i32 0, i32 2
75 tail call void asm sideeffect "", "~{r1},~{r3},~{r5},~{r11},~{r13}"() nounwind
76 store %class* %this, %class** %p1, align 4
77 store i32 %num, i32* %p2, align 4
81 ; Check RAFast handling of inline assembly with many dense clobbers.
82 ; The large tuple aliases of the vector registers can cause problems.
83 define void @rdar13249625(double* nocapture %p) nounwind {
84 %1 = tail call double asm sideeffect "@ $0", "=w,~{d0},~{q1},~{q2},~{q3},~{q4},~{q5},~{q6},~{q7},~{q8},~{q9},~{q10},~{q11},~{q12},~{q13},~{q14},~{q15}"() nounwind
85 store double %1, double* %p, align 4