mirror of
https://github.com/c64scene-ar/llvm-6502.git
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7d24705f65
callee-saved registers at the end of the lists. Also prefer to avoid using the low registers that are in register subclasses required by certain instructions, so that those registers will more likely be available when needed. This change makes a huge improvement in spilling in some cases. Thanks to Jakob for helping me realize the problem. Most of this patch is fixing the testsuite. There are quite a few places where we're checking for specific registers. I changed those to wildcards in places where that doesn't weaken the tests. The spill-q.ll and thumb2-spill-q.ll tests stopped spilling with this change, so I added a bunch of live values to force spills on those tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116055 91177308-0d34-0410-b5e6-96231b3b80d8
108 lines
3.2 KiB
LLVM
108 lines
3.2 KiB
LLVM
; RUN: llc < %s -march=arm -mattr=+neon | FileCheck %s
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define <8 x i8> @vld1i8(i8* %A) nounwind {
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;CHECK: vld1i8:
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;Check the alignment value. Max for this instruction is 64 bits:
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;CHECK: vld1.8 {d16}, [r0, :64]
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%tmp1 = call <8 x i8> @llvm.arm.neon.vld1.v8i8(i8* %A, i32 16)
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ret <8 x i8> %tmp1
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}
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define <4 x i16> @vld1i16(i16* %A) nounwind {
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;CHECK: vld1i16:
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;CHECK: vld1.16
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%tmp0 = bitcast i16* %A to i8*
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%tmp1 = call <4 x i16> @llvm.arm.neon.vld1.v4i16(i8* %tmp0, i32 1)
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ret <4 x i16> %tmp1
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}
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define <2 x i32> @vld1i32(i32* %A) nounwind {
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;CHECK: vld1i32:
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;CHECK: vld1.32
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%tmp0 = bitcast i32* %A to i8*
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%tmp1 = call <2 x i32> @llvm.arm.neon.vld1.v2i32(i8* %tmp0, i32 1)
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ret <2 x i32> %tmp1
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}
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define <2 x float> @vld1f(float* %A) nounwind {
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;CHECK: vld1f:
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;CHECK: vld1.32
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%tmp0 = bitcast float* %A to i8*
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%tmp1 = call <2 x float> @llvm.arm.neon.vld1.v2f32(i8* %tmp0, i32 1)
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ret <2 x float> %tmp1
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}
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define <1 x i64> @vld1i64(i64* %A) nounwind {
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;CHECK: vld1i64:
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;CHECK: vld1.64
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%tmp0 = bitcast i64* %A to i8*
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%tmp1 = call <1 x i64> @llvm.arm.neon.vld1.v1i64(i8* %tmp0, i32 1)
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ret <1 x i64> %tmp1
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}
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define <16 x i8> @vld1Qi8(i8* %A) nounwind {
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;CHECK: vld1Qi8:
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;Check the alignment value. Max for this instruction is 128 bits:
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;CHECK: vld1.8 {d16, d17}, [r0, :64]
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%tmp1 = call <16 x i8> @llvm.arm.neon.vld1.v16i8(i8* %A, i32 8)
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ret <16 x i8> %tmp1
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}
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define <8 x i16> @vld1Qi16(i16* %A) nounwind {
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;CHECK: vld1Qi16:
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;Check the alignment value. Max for this instruction is 128 bits:
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;CHECK: vld1.16 {d16, d17}, [r0, :128]
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%tmp0 = bitcast i16* %A to i8*
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%tmp1 = call <8 x i16> @llvm.arm.neon.vld1.v8i16(i8* %tmp0, i32 32)
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ret <8 x i16> %tmp1
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}
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define <4 x i32> @vld1Qi32(i32* %A) nounwind {
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;CHECK: vld1Qi32:
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;CHECK: vld1.32
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%tmp0 = bitcast i32* %A to i8*
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%tmp1 = call <4 x i32> @llvm.arm.neon.vld1.v4i32(i8* %tmp0, i32 1)
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ret <4 x i32> %tmp1
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}
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define <4 x float> @vld1Qf(float* %A) nounwind {
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;CHECK: vld1Qf:
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;CHECK: vld1.32
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%tmp0 = bitcast float* %A to i8*
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%tmp1 = call <4 x float> @llvm.arm.neon.vld1.v4f32(i8* %tmp0, i32 1)
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ret <4 x float> %tmp1
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}
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define <2 x i64> @vld1Qi64(i64* %A) nounwind {
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;CHECK: vld1Qi64:
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;CHECK: vld1.64
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%tmp0 = bitcast i64* %A to i8*
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%tmp1 = call <2 x i64> @llvm.arm.neon.vld1.v2i64(i8* %tmp0, i32 1)
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ret <2 x i64> %tmp1
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}
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declare <8 x i8> @llvm.arm.neon.vld1.v8i8(i8*, i32) nounwind readonly
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declare <4 x i16> @llvm.arm.neon.vld1.v4i16(i8*, i32) nounwind readonly
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declare <2 x i32> @llvm.arm.neon.vld1.v2i32(i8*, i32) nounwind readonly
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declare <2 x float> @llvm.arm.neon.vld1.v2f32(i8*, i32) nounwind readonly
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declare <1 x i64> @llvm.arm.neon.vld1.v1i64(i8*, i32) nounwind readonly
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declare <16 x i8> @llvm.arm.neon.vld1.v16i8(i8*, i32) nounwind readonly
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declare <8 x i16> @llvm.arm.neon.vld1.v8i16(i8*, i32) nounwind readonly
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declare <4 x i32> @llvm.arm.neon.vld1.v4i32(i8*, i32) nounwind readonly
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declare <4 x float> @llvm.arm.neon.vld1.v4f32(i8*, i32) nounwind readonly
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declare <2 x i64> @llvm.arm.neon.vld1.v2i64(i8*, i32) nounwind readonly
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; Radar 8355607
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; Do not crash if the vld1 result is not used.
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define void @unused_vld1_result() {
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entry:
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;CHECK: unused_vld1_result
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;CHECK: vld1.32
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%0 = call <4 x float> @llvm.arm.neon.vld1.v4f32(i8* undef, i32 1)
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call void @llvm.trap()
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unreachable
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}
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declare void @llvm.trap() nounwind
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