[SystemZ] Add CodeGen support for integer vector types
This the first of a series of patches to add CodeGen support exploiting
the instructions of the z13 vector facility. This patch adds support
for the native integer vector types (v16i8, v8i16, v4i32, v2i64).
When the vector facility is present, we default to the new vector ABI.
This is characterized by two major differences:
- Vector types are passed/returned in vector registers
(except for unnamed arguments of a variable-argument list function).
- Vector types are at most 8-byte aligned.
The reason for the choice of 8-byte vector alignment is that the hardware
is able to efficiently load vectors at 8-byte alignment, and the ABI only
guarantees 8-byte alignment of the stack pointer, so requiring any higher
alignment for vectors would require dynamic stack re-alignment code.
However, for compatibility with old code that may use vector types, when
*not* using the vector facility, the old alignment rules (vector types
are naturally aligned) remain in use.
These alignment rules are not only implemented at the C language level
(implemented in clang), but also at the LLVM IR level. This is done
by selecting a different DataLayout string depending on whether the
vector ABI is in effect or not.
Based on a patch by Richard Sandiford.
llvm-svn: 236521
2015-05-06 03:25:42 +08:00
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; Test vector extraction to memory.
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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 from the first element.
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define void @f1(<16 x i8> %val, i8 *%ptr) {
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; CHECK-LABEL: f1:
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; CHECK: vsteb %v24, 0(%r2), 0
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; CHECK: br %r14
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%element = extractelement <16 x i8> %val, i32 0
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store i8 %element, i8 *%ptr
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ret void
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}
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; Test v16i8 extraction from the last element.
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define void @f2(<16 x i8> %val, i8 *%ptr) {
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; CHECK-LABEL: f2:
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; CHECK: vsteb %v24, 0(%r2), 15
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; CHECK: br %r14
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%element = extractelement <16 x i8> %val, i32 15
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store i8 %element, i8 *%ptr
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ret void
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}
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; Test v16i8 extraction of an invalid element. This must compile,
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; but we don't care what it does.
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define void @f3(<16 x i8> %val, i8 *%ptr) {
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; CHECK-LABEL: f3:
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; CHECK-NOT: vsteb %v24, 0(%r2), 16
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; CHECK: br %r14
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%element = extractelement <16 x i8> %val, i32 16
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store i8 %element, i8 *%ptr
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ret void
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}
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; Test v16i8 extraction with the highest in-range offset.
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define void @f4(<16 x i8> %val, i8 *%base) {
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; CHECK-LABEL: f4:
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; CHECK: vsteb %v24, 4095(%r2), 10
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; CHECK: br %r14
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%ptr = getelementptr i8, i8 *%base, i32 4095
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%element = extractelement <16 x i8> %val, i32 10
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store i8 %element, i8 *%ptr
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ret void
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}
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; Test v16i8 extraction with the first ouf-of-range offset.
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define void @f5(<16 x i8> %val, i8 *%base) {
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; CHECK-LABEL: f5:
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; CHECK: aghi %r2, 4096
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; CHECK: vsteb %v24, 0(%r2), 5
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; CHECK: br %r14
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%ptr = getelementptr i8, i8 *%base, i32 4096
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%element = extractelement <16 x i8> %val, i32 5
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store i8 %element, i8 *%ptr
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ret void
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}
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; Test v16i8 extraction from a variable element.
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define void @f6(<16 x i8> %val, i8 *%ptr, i32 %index) {
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; CHECK-LABEL: f6:
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; CHECK-NOT: vsteb
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; CHECK: br %r14
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%element = extractelement <16 x i8> %val, i32 %index
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store i8 %element, i8 *%ptr
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ret void
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}
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; Test v8i16 extraction from the first element.
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define void @f7(<8 x i16> %val, i16 *%ptr) {
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; CHECK-LABEL: f7:
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; CHECK: vsteh %v24, 0(%r2), 0
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; CHECK: br %r14
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%element = extractelement <8 x i16> %val, i32 0
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store i16 %element, i16 *%ptr
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ret void
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}
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; Test v8i16 extraction from the last element.
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define void @f8(<8 x i16> %val, i16 *%ptr) {
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; CHECK-LABEL: f8:
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; CHECK: vsteh %v24, 0(%r2), 7
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; CHECK: br %r14
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%element = extractelement <8 x i16> %val, i32 7
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store i16 %element, i16 *%ptr
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ret void
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}
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; Test v8i16 extraction of an invalid element. This must compile,
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; but we don't care what it does.
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define void @f9(<8 x i16> %val, i16 *%ptr) {
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; CHECK-LABEL: f9:
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; CHECK-NOT: vsteh %v24, 0(%r2), 8
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; CHECK: br %r14
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%element = extractelement <8 x i16> %val, i32 8
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store i16 %element, i16 *%ptr
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ret void
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}
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; Test v8i16 extraction with the highest in-range offset.
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define void @f10(<8 x i16> %val, i16 *%base) {
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; CHECK-LABEL: f10:
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; CHECK: vsteh %v24, 4094(%r2), 5
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; CHECK: br %r14
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%ptr = getelementptr i16, i16 *%base, i32 2047
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%element = extractelement <8 x i16> %val, i32 5
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store i16 %element, i16 *%ptr
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ret void
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}
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; Test v8i16 extraction with the first ouf-of-range offset.
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define void @f11(<8 x i16> %val, i16 *%base) {
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; CHECK-LABEL: f11:
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; CHECK: aghi %r2, 4096
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; CHECK: vsteh %v24, 0(%r2), 1
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; CHECK: br %r14
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%ptr = getelementptr i16, i16 *%base, i32 2048
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%element = extractelement <8 x i16> %val, i32 1
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store i16 %element, i16 *%ptr
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ret void
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}
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; Test v8i16 extraction from a variable element.
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define void @f12(<8 x i16> %val, i16 *%ptr, i32 %index) {
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; CHECK-LABEL: f12:
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; CHECK-NOT: vsteh
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; CHECK: br %r14
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%element = extractelement <8 x i16> %val, i32 %index
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store i16 %element, i16 *%ptr
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ret void
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}
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; Test v4i32 extraction from the first element.
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define void @f13(<4 x i32> %val, i32 *%ptr) {
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; CHECK-LABEL: f13:
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; CHECK: vstef %v24, 0(%r2), 0
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; CHECK: br %r14
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%element = extractelement <4 x i32> %val, i32 0
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store i32 %element, i32 *%ptr
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ret void
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}
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; Test v4i32 extraction from the last element.
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define void @f14(<4 x i32> %val, i32 *%ptr) {
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; CHECK-LABEL: f14:
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; CHECK: vstef %v24, 0(%r2), 3
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; CHECK: br %r14
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%element = extractelement <4 x i32> %val, i32 3
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store i32 %element, i32 *%ptr
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ret void
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}
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; Test v4i32 extraction of an invalid element. This must compile,
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; but we don't care what it does.
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define void @f15(<4 x i32> %val, i32 *%ptr) {
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; CHECK-LABEL: f15:
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; CHECK-NOT: vstef %v24, 0(%r2), 4
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; CHECK: br %r14
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%element = extractelement <4 x i32> %val, i32 4
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store i32 %element, i32 *%ptr
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ret void
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}
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; Test v4i32 extraction with the highest in-range offset.
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define void @f16(<4 x i32> %val, i32 *%base) {
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; CHECK-LABEL: f16:
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; CHECK: vstef %v24, 4092(%r2), 2
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; CHECK: br %r14
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%ptr = getelementptr i32, i32 *%base, i32 1023
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%element = extractelement <4 x i32> %val, i32 2
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store i32 %element, i32 *%ptr
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ret void
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}
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; Test v4i32 extraction with the first ouf-of-range offset.
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define void @f17(<4 x i32> %val, i32 *%base) {
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; CHECK-LABEL: f17:
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; CHECK: aghi %r2, 4096
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; CHECK: vstef %v24, 0(%r2), 1
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; CHECK: br %r14
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%ptr = getelementptr i32, i32 *%base, i32 1024
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%element = extractelement <4 x i32> %val, i32 1
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store i32 %element, i32 *%ptr
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ret void
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}
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; Test v4i32 extraction from a variable element.
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define void @f18(<4 x i32> %val, i32 *%ptr, i32 %index) {
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; CHECK-LABEL: f18:
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; CHECK-NOT: vstef
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; CHECK: br %r14
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%element = extractelement <4 x i32> %val, i32 %index
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store i32 %element, i32 *%ptr
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ret void
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}
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; Test v2i64 extraction from the first element.
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define void @f19(<2 x i64> %val, i64 *%ptr) {
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; CHECK-LABEL: f19:
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; CHECK: vsteg %v24, 0(%r2), 0
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; CHECK: br %r14
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%element = extractelement <2 x i64> %val, i32 0
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store i64 %element, i64 *%ptr
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ret void
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}
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; Test v2i64 extraction from the last element.
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define void @f20(<2 x i64> %val, i64 *%ptr) {
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; CHECK-LABEL: f20:
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; CHECK: vsteg %v24, 0(%r2), 1
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; CHECK: br %r14
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%element = extractelement <2 x i64> %val, i32 1
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store i64 %element, i64 *%ptr
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ret void
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}
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; Test v2i64 extraction of an invalid element. This must compile,
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; but we don't care what it does.
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define void @f21(<2 x i64> %val, i64 *%ptr) {
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; CHECK-LABEL: f21:
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; CHECK-NOT: vsteg %v24, 0(%r2), 2
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; CHECK: br %r14
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%element = extractelement <2 x i64> %val, i32 2
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store i64 %element, i64 *%ptr
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ret void
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}
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; Test v2i64 extraction with the highest in-range offset.
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define void @f22(<2 x i64> %val, i64 *%base) {
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; CHECK-LABEL: f22:
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; CHECK: vsteg %v24, 4088(%r2), 1
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; CHECK: br %r14
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%ptr = getelementptr i64, i64 *%base, i32 511
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%element = extractelement <2 x i64> %val, i32 1
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store i64 %element, i64 *%ptr
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ret void
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}
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; Test v2i64 extraction with the first ouf-of-range offset.
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define void @f23(<2 x i64> %val, i64 *%base) {
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; CHECK-LABEL: f23:
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; CHECK: aghi %r2, 4096
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; CHECK: vsteg %v24, 0(%r2), 0
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; CHECK: br %r14
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%ptr = getelementptr i64, i64 *%base, i32 512
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%element = extractelement <2 x i64> %val, i32 0
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store i64 %element, i64 *%ptr
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ret void
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}
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; Test v2i64 extraction from a variable element.
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define void @f24(<2 x i64> %val, i64 *%ptr, i32 %index) {
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; CHECK-LABEL: f24:
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; CHECK-NOT: vsteg
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; CHECK: br %r14
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%element = extractelement <2 x i64> %val, i32 %index
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store i64 %element, i64 *%ptr
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ret void
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}
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2015-05-06 03:27:45 +08:00
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; Test v4f32 extraction from the first element.
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define void @f25(<4 x float> %val, float *%ptr) {
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; CHECK-LABEL: f25:
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; CHECK: vstef %v24, 0(%r2), 0
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; CHECK: br %r14
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%element = extractelement <4 x float> %val, i32 0
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store float %element, float *%ptr
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ret void
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}
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; Test v4f32 extraction from the last element.
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define void @f26(<4 x float> %val, float *%ptr) {
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; CHECK-LABEL: f26:
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; CHECK: vstef %v24, 0(%r2), 3
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; CHECK: br %r14
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%element = extractelement <4 x float> %val, i32 3
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store float %element, float *%ptr
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ret void
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}
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; Test v4f32 extraction of an invalid element. This must compile,
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; but we don't care what it does.
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define void @f27(<4 x float> %val, float *%ptr) {
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; CHECK-LABEL: f27:
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; CHECK-NOT: vstef %v24, 0(%r2), 4
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; CHECK: br %r14
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%element = extractelement <4 x float> %val, i32 4
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store float %element, float *%ptr
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ret void
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}
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; Test v4f32 extraction with the highest in-range offset.
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define void @f28(<4 x float> %val, float *%base) {
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; CHECK-LABEL: f28:
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; CHECK: vstef %v24, 4092(%r2), 2
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; CHECK: br %r14
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%ptr = getelementptr float, float *%base, i32 1023
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%element = extractelement <4 x float> %val, i32 2
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store float %element, float *%ptr
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ret void
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}
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; Test v4f32 extraction with the first ouf-of-range offset.
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define void @f29(<4 x float> %val, float *%base) {
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; CHECK-LABEL: f29:
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; CHECK: aghi %r2, 4096
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; CHECK: vstef %v24, 0(%r2), 1
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; CHECK: br %r14
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%ptr = getelementptr float, float *%base, i32 1024
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%element = extractelement <4 x float> %val, i32 1
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store float %element, float *%ptr
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ret void
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}
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; Test v4f32 extraction from a variable element.
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define void @f30(<4 x float> %val, float *%ptr, i32 %index) {
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; CHECK-LABEL: f30:
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; CHECK-NOT: vstef
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; CHECK: br %r14
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%element = extractelement <4 x float> %val, i32 %index
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store float %element, float *%ptr
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ret void
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}
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2015-05-06 03:26:48 +08:00
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; Test v2f64 extraction from the first element.
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define void @f32(<2 x double> %val, double *%ptr) {
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; CHECK-LABEL: f32:
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|
|
|
; CHECK: vsteg %v24, 0(%r2), 0
|
|
|
|
; CHECK: br %r14
|
|
|
|
%element = extractelement <2 x double> %val, i32 0
|
|
|
|
store double %element, double *%ptr
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
; Test v2f64 extraction from the last element.
|
|
|
|
define void @f33(<2 x double> %val, double *%ptr) {
|
|
|
|
; CHECK-LABEL: f33:
|
|
|
|
; CHECK: vsteg %v24, 0(%r2), 1
|
|
|
|
; CHECK: br %r14
|
|
|
|
%element = extractelement <2 x double> %val, i32 1
|
|
|
|
store double %element, double *%ptr
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
; Test v2f64 extraction with the highest in-range offset.
|
|
|
|
define void @f34(<2 x double> %val, double *%base) {
|
|
|
|
; CHECK-LABEL: f34:
|
|
|
|
; CHECK: vsteg %v24, 4088(%r2), 1
|
|
|
|
; CHECK: br %r14
|
|
|
|
%ptr = getelementptr double, double *%base, i32 511
|
|
|
|
%element = extractelement <2 x double> %val, i32 1
|
|
|
|
store double %element, double *%ptr
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
; Test v2f64 extraction with the first ouf-of-range offset.
|
|
|
|
define void @f35(<2 x double> %val, double *%base) {
|
|
|
|
; CHECK-LABEL: f35:
|
|
|
|
; CHECK: aghi %r2, 4096
|
|
|
|
; CHECK: vsteg %v24, 0(%r2), 0
|
|
|
|
; CHECK: br %r14
|
|
|
|
%ptr = getelementptr double, double *%base, i32 512
|
|
|
|
%element = extractelement <2 x double> %val, i32 0
|
|
|
|
store double %element, double *%ptr
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
; Test v2f64 extraction from a variable element.
|
|
|
|
define void @f36(<2 x double> %val, double *%ptr, i32 %index) {
|
|
|
|
; CHECK-LABEL: f36:
|
|
|
|
; CHECK-NOT: vsteg
|
|
|
|
; CHECK: br %r14
|
|
|
|
%element = extractelement <2 x double> %val, i32 %index
|
|
|
|
store double %element, double *%ptr
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
[SystemZ] Add CodeGen support for integer vector types
This the first of a series of patches to add CodeGen support exploiting
the instructions of the z13 vector facility. This patch adds support
for the native integer vector types (v16i8, v8i16, v4i32, v2i64).
When the vector facility is present, we default to the new vector ABI.
This is characterized by two major differences:
- Vector types are passed/returned in vector registers
(except for unnamed arguments of a variable-argument list function).
- Vector types are at most 8-byte aligned.
The reason for the choice of 8-byte vector alignment is that the hardware
is able to efficiently load vectors at 8-byte alignment, and the ABI only
guarantees 8-byte alignment of the stack pointer, so requiring any higher
alignment for vectors would require dynamic stack re-alignment code.
However, for compatibility with old code that may use vector types, when
*not* using the vector facility, the old alignment rules (vector types
are naturally aligned) remain in use.
These alignment rules are not only implemented at the C language level
(implemented in clang), but also at the LLVM IR level. This is done
by selecting a different DataLayout string depending on whether the
vector ABI is in effect or not.
Based on a patch by Richard Sandiford.
llvm-svn: 236521
2015-05-06 03:25:42 +08:00
|
|
|
; Test a v4i32 scatter of the first element.
|
|
|
|
define void @f37(<4 x i32> %val, <4 x i32> %index, i64 %base) {
|
|
|
|
; CHECK-LABEL: f37:
|
|
|
|
; CHECK: vscef %v24, 0(%v26,%r2), 0
|
|
|
|
; CHECK: br %r14
|
|
|
|
%elem = extractelement <4 x i32> %index, i32 0
|
|
|
|
%ext = zext i32 %elem to i64
|
|
|
|
%add = add i64 %base, %ext
|
|
|
|
%ptr = inttoptr i64 %add to i32 *
|
|
|
|
%element = extractelement <4 x i32> %val, i32 0
|
|
|
|
store i32 %element, i32 *%ptr
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
; Test a v4i32 scatter of the last element.
|
|
|
|
define void @f38(<4 x i32> %val, <4 x i32> %index, i64 %base) {
|
|
|
|
; CHECK-LABEL: f38:
|
|
|
|
; CHECK: vscef %v24, 0(%v26,%r2), 3
|
|
|
|
; CHECK: br %r14
|
|
|
|
%elem = extractelement <4 x i32> %index, i32 3
|
|
|
|
%ext = zext i32 %elem to i64
|
|
|
|
%add = add i64 %base, %ext
|
|
|
|
%ptr = inttoptr i64 %add to i32 *
|
|
|
|
%element = extractelement <4 x i32> %val, i32 3
|
|
|
|
store i32 %element, i32 *%ptr
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
; Test a v4i32 scatter with the highest in-range offset.
|
|
|
|
define void @f39(<4 x i32> %val, <4 x i32> %index, i64 %base) {
|
|
|
|
; CHECK-LABEL: f39:
|
|
|
|
; CHECK: vscef %v24, 4095(%v26,%r2), 1
|
|
|
|
; CHECK: br %r14
|
|
|
|
%elem = extractelement <4 x i32> %index, i32 1
|
|
|
|
%ext = zext i32 %elem to i64
|
|
|
|
%add1 = add i64 %base, %ext
|
|
|
|
%add2 = add i64 %add1, 4095
|
|
|
|
%ptr = inttoptr i64 %add2 to i32 *
|
|
|
|
%element = extractelement <4 x i32> %val, i32 1
|
|
|
|
store i32 %element, i32 *%ptr
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
; Test a v2i64 scatter of the first element.
|
|
|
|
define void @f40(<2 x i64> %val, <2 x i64> %index, i64 %base) {
|
|
|
|
; CHECK-LABEL: f40:
|
|
|
|
; CHECK: vsceg %v24, 0(%v26,%r2), 0
|
|
|
|
; CHECK: br %r14
|
|
|
|
%elem = extractelement <2 x i64> %index, i32 0
|
|
|
|
%add = add i64 %base, %elem
|
|
|
|
%ptr = inttoptr i64 %add to i64 *
|
|
|
|
%element = extractelement <2 x i64> %val, i32 0
|
|
|
|
store i64 %element, i64 *%ptr
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
; Test a v2i64 scatter of the last element.
|
|
|
|
define void @f41(<2 x i64> %val, <2 x i64> %index, i64 %base) {
|
|
|
|
; CHECK-LABEL: f41:
|
|
|
|
; CHECK: vsceg %v24, 0(%v26,%r2), 1
|
|
|
|
; CHECK: br %r14
|
|
|
|
%elem = extractelement <2 x i64> %index, i32 1
|
|
|
|
%add = add i64 %base, %elem
|
|
|
|
%ptr = inttoptr i64 %add to i64 *
|
|
|
|
%element = extractelement <2 x i64> %val, i32 1
|
|
|
|
store i64 %element, i64 *%ptr
|
|
|
|
ret void
|
|
|
|
}
|
2015-05-06 03:26:48 +08:00
|
|
|
|
2015-05-06 03:27:45 +08:00
|
|
|
; Test a v4f32 scatter of the first element.
|
|
|
|
define void @f42(<4 x float> %val, <4 x i32> %index, i64 %base) {
|
|
|
|
; CHECK-LABEL: f42:
|
|
|
|
; CHECK: vscef %v24, 0(%v26,%r2), 0
|
|
|
|
; CHECK: br %r14
|
|
|
|
%elem = extractelement <4 x i32> %index, i32 0
|
|
|
|
%ext = zext i32 %elem to i64
|
|
|
|
%add = add i64 %base, %ext
|
|
|
|
%ptr = inttoptr i64 %add to float *
|
|
|
|
%element = extractelement <4 x float> %val, i32 0
|
|
|
|
store float %element, float *%ptr
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
; Test a v4f32 scatter of the last element.
|
|
|
|
define void @f43(<4 x float> %val, <4 x i32> %index, i64 %base) {
|
|
|
|
; CHECK-LABEL: f43:
|
|
|
|
; CHECK: vscef %v24, 0(%v26,%r2), 3
|
|
|
|
; CHECK: br %r14
|
|
|
|
%elem = extractelement <4 x i32> %index, i32 3
|
|
|
|
%ext = zext i32 %elem to i64
|
|
|
|
%add = add i64 %base, %ext
|
|
|
|
%ptr = inttoptr i64 %add to float *
|
|
|
|
%element = extractelement <4 x float> %val, i32 3
|
|
|
|
store float %element, float *%ptr
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
2015-05-06 03:26:48 +08:00
|
|
|
; Test a v2f64 scatter of the first element.
|
|
|
|
define void @f44(<2 x double> %val, <2 x i64> %index, i64 %base) {
|
|
|
|
; CHECK-LABEL: f44:
|
|
|
|
; CHECK: vsceg %v24, 0(%v26,%r2), 0
|
|
|
|
; CHECK: br %r14
|
|
|
|
%elem = extractelement <2 x i64> %index, i32 0
|
|
|
|
%add = add i64 %base, %elem
|
|
|
|
%ptr = inttoptr i64 %add to double *
|
|
|
|
%element = extractelement <2 x double> %val, i32 0
|
|
|
|
store double %element, double *%ptr
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
; Test a v2f64 scatter of the last element.
|
|
|
|
define void @f45(<2 x double> %val, <2 x i64> %index, i64 %base) {
|
|
|
|
; CHECK-LABEL: f45:
|
|
|
|
; CHECK: vsceg %v24, 0(%v26,%r2), 1
|
|
|
|
; CHECK: br %r14
|
|
|
|
%elem = extractelement <2 x i64> %index, i32 1
|
|
|
|
%add = add i64 %base, %elem
|
|
|
|
%ptr = inttoptr i64 %add to double *
|
|
|
|
%element = extractelement <2 x double> %val, i32 1
|
|
|
|
store double %element, double *%ptr
|
|
|
|
ret void
|
|
|
|
}
|