llvm-project/llvm/test/CodeGen/ARM/vldm-liveness.ll

28 lines
1010 B
LLVM

; RUN: llc -mtriple thumbv7-apple-ios -verify-machineinstrs -o - %s | FileCheck %s
; Make sure we emit the loads in ascending order, and form a vldmia.
;
; See vldm-liveness.mir for the bug this file originally testing.
define arm_aapcs_vfpcc <4 x float> @foo(float* %ptr) {
; CHECK-LABEL: foo:
; CHECK: vldmia r0, {s0, s1}
; CHECK: vldr s3, [r0, #8]
; CHECK: vldr s2, [r0, #16]
%off0 = getelementptr float, float* %ptr, i32 0
%val0 = load float, float* %off0
%off1 = getelementptr float, float* %ptr, i32 1
%val1 = load float, float* %off1
%off4 = getelementptr float, float* %ptr, i32 4
%val4 = load float, float* %off4
%off2 = getelementptr float, float* %ptr, i32 2
%val2 = load float, float* %off2
%vec1 = insertelement <4 x float> undef, float %val0, i32 0
%vec2 = insertelement <4 x float> %vec1, float %val1, i32 1
%vec3 = insertelement <4 x float> %vec2, float %val4, i32 2
%vec4 = insertelement <4 x float> %vec3, float %val2, i32 3
ret <4 x float> %vec4
}