File: irtranslator-one-by-n-vector-ptr-add.ll

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (42 lines) | stat: -rw-r--r-- 2,002 bytes parent folder | download | duplicates (7)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
; RUN: llc -O0 -global-isel -mtriple aarch64 -stop-after=irtranslator -verify-machineinstrs %s -o - | FileCheck %s

; Make sure we treat <1 x N> getelementptrs like scalar getelementptrs.

; We should not create a splat vector for the non-vector index on this
; getelementptr. The entire getelementptr should be translated to a scalar
; G_PTR_ADD.
define <1 x i8*> @one_elt_vector_ptr_add_non_vector_idx(<1 x i8*> %vec) {
  ; CHECK-LABEL: name: one_elt_vector_ptr_add_non_vector_idx
  ; CHECK: bb.1 (%ir-block.0):
  ; CHECK:   liveins: $d0
  ; CHECK:   [[COPY:%[0-9]+]]:_(p0) = COPY $d0
  ; CHECK:   [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
  ; CHECK:   [[COPY1:%[0-9]+]]:_(s32) = COPY [[C]](s32)
  ; CHECK:   [[SEXT:%[0-9]+]]:_(s64) = G_SEXT [[COPY1]](s32)
  ; CHECK:   [[PTR_ADD:%[0-9]+]]:_(p0) = G_PTR_ADD [[COPY]], [[SEXT]](s64)
  ; CHECK:   [[COPY2:%[0-9]+]]:_(p0) = COPY [[PTR_ADD]](p0)
  ; CHECK:   $d0 = COPY [[COPY2]](p0)
  ; CHECK:   RET_ReallyLR implicit $d0
  %ptr_add = getelementptr i8, <1 x i8*> %vec, <1 x i32> <i32 1>
  ret <1 x i8*> %ptr_add
}

; We should not create a splat vector for the non-vector pointer on this
; getelementptr. The entire getelementptr should be translated to a scalar
; G_PTR_ADD.
define <1 x i8*> @one_elt_vector_ptr_add_non_vector_ptr(i8* %vec) {
  ; CHECK-LABEL: name: one_elt_vector_ptr_add_non_vector_ptr
  ; CHECK: bb.1 (%ir-block.0):
  ; CHECK:   liveins: $x0
  ; CHECK:   [[COPY:%[0-9]+]]:_(p0) = COPY $x0
  ; CHECK:   [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
  ; CHECK:   [[COPY1:%[0-9]+]]:_(s32) = COPY [[C]](s32)
  ; CHECK:   [[SEXT:%[0-9]+]]:_(s64) = G_SEXT [[COPY1]](s32)
  ; CHECK:   [[PTR_ADD:%[0-9]+]]:_(p0) = G_PTR_ADD [[COPY]], [[SEXT]](s64)
  ; CHECK:   [[COPY2:%[0-9]+]]:_(p0) = COPY [[PTR_ADD]](p0)
  ; CHECK:   $d0 = COPY [[COPY2]](p0)
  ; CHECK:   RET_ReallyLR implicit $d0
  %ptr_add = getelementptr i8, i8* %vec, <1 x i32> <i32 1>
  ret <1 x i8*> %ptr_add
}