b3a7ab6f1f
Limits #117900 to only fold when scalar_to_vector doesn't perform implicit truncation, as the scaled shift calculation doesn't currently account for this - this can be addressed in a future update. Fixes #121306
50 lines
1.8 KiB
LLVM
50 lines
1.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
|
; RUN: llc -mcpu=pwr9 -verify-machineinstrs -ppc-vsr-nums-as-vr -ppc-asm-full-reg-names \
|
|
; RUN: -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s --check-prefix=P9LE
|
|
; RUN: llc -mcpu=pwr9 -verify-machineinstrs -ppc-vsr-nums-as-vr -ppc-asm-full-reg-names \
|
|
; RUN: -mtriple=powerpc64-unknown-linux-gnu < %s | FileCheck %s --check-prefix=P9BE
|
|
; RUN: llc -mcpu=pwr8 -verify-machineinstrs -ppc-vsr-nums-as-vr -ppc-asm-full-reg-names \
|
|
; RUN: -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s --check-prefix=P8LE
|
|
; RUN: llc -mcpu=pwr8 -verify-machineinstrs -ppc-vsr-nums-as-vr -ppc-asm-full-reg-names \
|
|
; RUN: -mtriple=powerpc64-unknown-linux-gnu < %s | FileCheck %s --check-prefix=P8BE
|
|
|
|
define i8 @scalar_to_vector_half(ptr nocapture readonly %ad) {
|
|
; P9LE-LABEL: scalar_to_vector_half:
|
|
; P9LE: # %bb.0: # %entry
|
|
; P9LE-NEXT: lxsihzx v2, 0, r3
|
|
; P9LE-NEXT: li r3, 0
|
|
; P9LE-NEXT: vsplth v2, v2, 3
|
|
; P9LE-NEXT: vextubrx r3, r3, v2
|
|
; P9LE-NEXT: blr
|
|
;
|
|
; P9BE-LABEL: scalar_to_vector_half:
|
|
; P9BE: # %bb.0: # %entry
|
|
; P9BE-NEXT: lxsihzx v2, 0, r3
|
|
; P9BE-NEXT: li r3, 0
|
|
; P9BE-NEXT: vsplth v2, v2, 3
|
|
; P9BE-NEXT: vextublx r3, r3, v2
|
|
; P9BE-NEXT: blr
|
|
;
|
|
; P8LE-LABEL: scalar_to_vector_half:
|
|
; P8LE: # %bb.0: # %entry
|
|
; P8LE-NEXT: lhz r3, 0(r3)
|
|
; P8LE-NEXT: mtfprd f0, r3
|
|
; P8LE-NEXT: mffprd r3, f0
|
|
; P8LE-NEXT: clrldi r3, r3, 56
|
|
; P8LE-NEXT: blr
|
|
;
|
|
; P8BE-LABEL: scalar_to_vector_half:
|
|
; P8BE: # %bb.0: # %entry
|
|
; P8BE-NEXT: lhz r3, 0(r3)
|
|
; P8BE-NEXT: sldi r3, r3, 48
|
|
; P8BE-NEXT: mtfprd f0, r3
|
|
; P8BE-NEXT: mffprd r3, f0
|
|
; P8BE-NEXT: rldicl r3, r3, 8, 56
|
|
; P8BE-NEXT: blr
|
|
entry:
|
|
%0 = load <2 x i8>, ptr %ad, align 1
|
|
%1 = extractelement <2 x i8> %0, i32 0
|
|
ret i8 %1
|
|
}
|
|
|