xref: /llvm-project/llvm/test/CodeGen/ARM/vldm-liveness.ll (revision bed1c7f061aa12417aa081e334afdba45767b938)
1; RUN: llc -mtriple thumbv7-apple-ios -verify-machineinstrs -o - %s | FileCheck %s
2
3; Make sure we emit the loads in ascending order, and form a vldmia.
4;
5; See vldm-liveness.mir for the bug this file originally testing.
6
7define arm_aapcs_vfpcc <4 x float> @foo(ptr %ptr) {
8; CHECK-LABEL: foo:
9; CHECK: vldmia r0, {s0, s1}
10; CHECK: vldr s3, [r0, #8]
11; CHECK: vldr s2, [r0, #16]
12   %val0 = load float, ptr %ptr
13   %off1 = getelementptr float, ptr %ptr, i32 1
14   %val1 = load float, ptr %off1
15   %off4 = getelementptr float, ptr %ptr, i32 4
16   %val4 = load float, ptr %off4
17   %off2 = getelementptr float, ptr %ptr, i32 2
18   %val2 = load float, ptr %off2
19
20   %vec1 = insertelement <4 x float> undef, float %val0, i32 0
21   %vec2 = insertelement <4 x float> %vec1, float %val1, i32 1
22   %vec3 = insertelement <4 x float> %vec2, float %val4, i32 2
23   %vec4 = insertelement <4 x float> %vec3, float %val2, i32 3
24
25   ret <4 x float> %vec4
26}
27