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https://github.com/c64scene-ar/llvm-6502.git
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878c6281d3
The architecture doesn't really have any native v4f32 operations except v4f32->v2f64 and v2f64->v4f32 conversions, with only half of the v4f32 elements being used. Even so, using vector registers for <4 x float> and scalarising individual operations is much better than generating completely scalar code, since there's much less register pressure. It's also more efficient to do v4f32 comparisons by extending to 2 v2f64s, comparing those, then packing the result. This particularly helps with llvmpipe. Based on a patch by Richard Sandiford. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236523 91177308-0d34-0410-b5e6-96231b3b80d8
250 lines
6.2 KiB
LLVM
250 lines
6.2 KiB
LLVM
; Test vector extraction.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s
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; Test v16i8 extraction of the first element.
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define i8 @f1(<16 x i8> %val) {
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; CHECK-LABEL: f1:
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; CHECK: vlgvb %r2, %v24, 0
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; CHECK: br %r14
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%ret = extractelement <16 x i8> %val, i32 0
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ret i8 %ret
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}
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; Test v16i8 extraction of the last element.
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define i8 @f2(<16 x i8> %val) {
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; CHECK-LABEL: f2:
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; CHECK: vlgvb %r2, %v24, 15
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; CHECK: br %r14
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%ret = extractelement <16 x i8> %val, i32 15
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ret i8 %ret
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}
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; Test v16i8 extractions of an absurd element number. This must compile
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; but we don't care what it does.
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define i8 @f3(<16 x i8> %val) {
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; CHECK-LABEL: f3:
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; CHECK-NOT: vlgvb %r2, %v24, 100000
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; CHECK: br %r14
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%ret = extractelement <16 x i8> %val, i32 100000
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ret i8 %ret
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}
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; Test v16i8 extraction of a variable element.
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define i8 @f4(<16 x i8> %val, i32 %index) {
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; CHECK-LABEL: f4:
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; CHECK: vlgvb %r2, %v24, 0(%r2)
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; CHECK: br %r14
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%ret = extractelement <16 x i8> %val, i32 %index
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ret i8 %ret
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}
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; Test v8i16 extraction of the first element.
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define i16 @f5(<8 x i16> %val) {
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; CHECK-LABEL: f5:
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; CHECK: vlgvh %r2, %v24, 0
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; CHECK: br %r14
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%ret = extractelement <8 x i16> %val, i32 0
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ret i16 %ret
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}
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; Test v8i16 extraction of the last element.
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define i16 @f6(<8 x i16> %val) {
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; CHECK-LABEL: f6:
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; CHECK: vlgvh %r2, %v24, 7
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; CHECK: br %r14
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%ret = extractelement <8 x i16> %val, i32 7
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ret i16 %ret
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}
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; Test v8i16 extractions of an absurd element number. This must compile
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; but we don't care what it does.
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define i16 @f7(<8 x i16> %val) {
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; CHECK-LABEL: f7:
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; CHECK-NOT: vlgvh %r2, %v24, 100000
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; CHECK: br %r14
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%ret = extractelement <8 x i16> %val, i32 100000
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ret i16 %ret
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}
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; Test v8i16 extraction of a variable element.
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define i16 @f8(<8 x i16> %val, i32 %index) {
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; CHECK-LABEL: f8:
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; CHECK: vlgvh %r2, %v24, 0(%r2)
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; CHECK: br %r14
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%ret = extractelement <8 x i16> %val, i32 %index
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ret i16 %ret
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}
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; Test v4i32 extraction of the first element.
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define i32 @f9(<4 x i32> %val) {
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; CHECK-LABEL: f9:
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; CHECK: vlgvf %r2, %v24, 0
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; CHECK: br %r14
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%ret = extractelement <4 x i32> %val, i32 0
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ret i32 %ret
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}
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; Test v4i32 extraction of the last element.
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define i32 @f10(<4 x i32> %val) {
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; CHECK-LABEL: f10:
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; CHECK: vlgvf %r2, %v24, 3
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; CHECK: br %r14
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%ret = extractelement <4 x i32> %val, i32 3
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ret i32 %ret
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}
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; Test v4i32 extractions of an absurd element number. This must compile
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; but we don't care what it does.
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define i32 @f11(<4 x i32> %val) {
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; CHECK-LABEL: f11:
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; CHECK-NOT: vlgvf %r2, %v24, 100000
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; CHECK: br %r14
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%ret = extractelement <4 x i32> %val, i32 100000
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ret i32 %ret
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}
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; Test v4i32 extraction of a variable element.
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define i32 @f12(<4 x i32> %val, i32 %index) {
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; CHECK-LABEL: f12:
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; CHECK: vlgvf %r2, %v24, 0(%r2)
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; CHECK: br %r14
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%ret = extractelement <4 x i32> %val, i32 %index
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ret i32 %ret
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}
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; Test v2i64 extraction of the first element.
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define i64 @f13(<2 x i64> %val) {
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; CHECK-LABEL: f13:
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; CHECK: vlgvg %r2, %v24, 0
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; CHECK: br %r14
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%ret = extractelement <2 x i64> %val, i32 0
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ret i64 %ret
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}
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; Test v2i64 extraction of the last element.
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define i64 @f14(<2 x i64> %val) {
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; CHECK-LABEL: f14:
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; CHECK: vlgvg %r2, %v24, 1
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; CHECK: br %r14
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%ret = extractelement <2 x i64> %val, i32 1
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ret i64 %ret
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}
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; Test v2i64 extractions of an absurd element number. This must compile
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; but we don't care what it does.
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define i64 @f15(<2 x i64> %val) {
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; CHECK-LABEL: f15:
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; CHECK-NOT: vlgvg %r2, %v24, 100000
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; CHECK: br %r14
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%ret = extractelement <2 x i64> %val, i32 100000
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ret i64 %ret
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}
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; Test v2i64 extraction of a variable element.
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define i64 @f16(<2 x i64> %val, i32 %index) {
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; CHECK-LABEL: f16:
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; CHECK: vlgvg %r2, %v24, 0(%r2)
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; CHECK: br %r14
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%ret = extractelement <2 x i64> %val, i32 %index
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ret i64 %ret
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}
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; Test v4f32 extraction of element 0.
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define float @f17(<4 x float> %val) {
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; CHECK-LABEL: f17:
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; CHECK: vlr %v0, %v24
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; CHECK: br %r14
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%ret = extractelement <4 x float> %val, i32 0
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ret float %ret
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}
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; Test v4f32 extraction of element 1.
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define float @f18(<4 x float> %val) {
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; CHECK-LABEL: f18:
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; CHECK: vrepf %v0, %v24, 1
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; CHECK: br %r14
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%ret = extractelement <4 x float> %val, i32 1
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ret float %ret
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}
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; Test v4f32 extraction of element 2.
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define float @f19(<4 x float> %val) {
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; CHECK-LABEL: f19:
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; CHECK: vrepf %v0, %v24, 2
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; CHECK: br %r14
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%ret = extractelement <4 x float> %val, i32 2
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ret float %ret
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}
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; Test v4f32 extraction of element 3.
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define float @f20(<4 x float> %val) {
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; CHECK-LABEL: f20:
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; CHECK: vrepf %v0, %v24, 3
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; CHECK: br %r14
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%ret = extractelement <4 x float> %val, i32 3
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ret float %ret
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}
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; Test v4f32 extractions of an absurd element number. This must compile
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; but we don't care what it does.
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define float @f21(<4 x float> %val) {
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%ret = extractelement <4 x float> %val, i32 100000
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ret float %ret
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}
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; Test v4f32 extraction of a variable element.
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define float @f22(<4 x float> %val, i32 %index) {
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; CHECK-LABEL: f22:
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; CHECK: vlgvf [[REG:%r[0-5]]], %v24, 0(%r2)
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; CHECK: vlvgf %v0, [[REG]], 0
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; CHECK: br %r14
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%ret = extractelement <4 x float> %val, i32 %index
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ret float %ret
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}
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; Test v2f64 extraction of the first element.
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define double @f23(<2 x double> %val) {
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; CHECK-LABEL: f23:
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; CHECK: vlr %v0, %v24
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; CHECK: br %r14
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%ret = extractelement <2 x double> %val, i32 0
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ret double %ret
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}
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; Test v2f64 extraction of the last element.
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define double @f24(<2 x double> %val) {
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; CHECK-LABEL: f24:
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; CHECK: vrepg %v0, %v24, 1
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; CHECK: br %r14
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%ret = extractelement <2 x double> %val, i32 1
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ret double %ret
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}
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; Test v2f64 extractions of an absurd element number. This must compile
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; but we don't care what it does.
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define double @f25(<2 x double> %val) {
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%ret = extractelement <2 x double> %val, i32 100000
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ret double %ret
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}
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; Test v2f64 extraction of a variable element.
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define double @f26(<2 x double> %val, i32 %index) {
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; CHECK-LABEL: f26:
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; CHECK: vlgvg [[REG:%r[0-5]]], %v24, 0(%r2)
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; CHECK: ldgr %f0, [[REG]]
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; CHECK: br %r14
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%ret = extractelement <2 x double> %val, i32 %index
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ret double %ret
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}
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; Test v16i8 extraction of a variable element with an offset.
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define i8 @f27(<16 x i8> %val, i32 %index) {
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; CHECK-LABEL: f27:
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; CHECK: vlgvb %r2, %v24, 1(%r2)
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; CHECK: br %r14
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%add = add i32 %index, 1
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%ret = extractelement <16 x i8> %val, i32 %add
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ret i8 %ret
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}
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