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llvm-mirror/test/CodeGen/ARM/2010-06-29-PartialRedefFastAlloc.ll
Jeroen Ketema b9ecf8a3ee [ARM][NEON] Use address space in vld([1234]|[234]lane) and vst([1234]|[234]lane) instructions
This commit changes the interface of the vld[1234], vld[234]lane, and vst[1234],
vst[234]lane ARM neon intrinsics and associates an address space with the
pointer that these intrinsics take. This changes, e.g.,

<2 x i32> @llvm.arm.neon.vld1.v2i32(i8*, i32)

to

<2 x i32> @llvm.arm.neon.vld1.v2i32.p0i8(i8*, i32)

This change ensures that address spaces are fully taken into account in the ARM
target during lowering of interleaved loads and stores.

Differential Revision: http://reviews.llvm.org/D12985

llvm-svn: 248887
2015-09-30 10:56:37 +00:00

26 lines
966 B
LLVM

; RUN: llc < %s -O0 -mcpu=cortex-a8 | FileCheck %s
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-v64:32:64-v128:32:128-a0:0:32-n32"
target triple = "thumbv7-apple-darwin10"
; This tests the fast register allocator's handling of partial redefines:
;
; %reg1028:dsub_0<def>, %reg1028:dsub_1<def> = VLD1q64 %reg1025...
; %reg1030:dsub_1<def> = COPY %reg1028:dsub_0<kill>
;
; %reg1028 gets allocated %Q0, and if %reg1030 is reloaded for the partial
; redef, it cannot also get %Q0.
; CHECK: vld1.64 {d16, d17}, [r{{.}}]
; CHECK-NOT: vld1.64 {d16, d17}
; CHECK: vmov.f64
define i32 @test(i8* %arg) nounwind {
entry:
%0 = call <2 x i64> @llvm.arm.neon.vld1.v2i64.p0i8(i8* %arg, i32 1)
%1 = shufflevector <2 x i64> undef, <2 x i64> %0, <2 x i32> <i32 1, i32 2>
store <2 x i64> %1, <2 x i64>* undef, align 16
ret i32 undef
}
declare <2 x i64> @llvm.arm.neon.vld1.v2i64.p0i8(i8*, i32) nounwind readonly