eb7d16ea25
mflr is kind of expensive on Power version smaller than 10, so we should schedule the store for the mflr's def away from mflr. In epilogue, the expensive mtlr has no user for its def, so it doesn't matter that the load and the mtlr are back-to-back. Reviewed By: RolandF Differential Revision: https://reviews.llvm.org/D137423
77 lines
2.4 KiB
LLVM
77 lines
2.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
|
; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu \
|
|
; RUN: -mcpu=pwr10 -ppc-asm-full-reg-names -ppc-vsr-nums-as-vr \
|
|
; RUN: < %s | FileCheck %s --check-prefix LE-P10
|
|
; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu \
|
|
; RUN: -mcpu=pwr10 -ppc-asm-full-reg-names -ppc-vsr-nums-as-vr \
|
|
; RUN: < %s | FileCheck %s --check-prefix BE-P10
|
|
; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu \
|
|
; RUN: -mcpu=pwr9 -ppc-asm-full-reg-names -ppc-vsr-nums-as-vr \
|
|
; RUN: < %s | FileCheck %s --check-prefix LE-P9
|
|
; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu \
|
|
; RUN: -mcpu=pwr9 -ppc-asm-full-reg-names -ppc-vsr-nums-as-vr \
|
|
; RUN: < %s | FileCheck %s --check-prefix BE-P9
|
|
|
|
; Function Attrs: nounwind strictfp
|
|
define dso_local signext i32 @main() #0 {
|
|
; LE-P10-LABEL: main:
|
|
; LE-P10: # %bb.0: # %_main_entry
|
|
; LE-P10-NEXT: mflr r0
|
|
; LE-P10-NEXT: std r0, 16(r1)
|
|
; LE-P10-NEXT: stdu r1, -32(r1)
|
|
; LE-P10-NEXT: bl callee@notoc
|
|
; LE-P10-NEXT: li r3, 0
|
|
; LE-P10-NEXT: addi r1, r1, 32
|
|
; LE-P10-NEXT: ld r0, 16(r1)
|
|
; LE-P10-NEXT: mtlr r0
|
|
; LE-P10-NEXT: blr
|
|
;
|
|
; BE-P10-LABEL: main:
|
|
; BE-P10: # %bb.0: # %_main_entry
|
|
; BE-P10-NEXT: mflr r0
|
|
; BE-P10-NEXT: std r0, 16(r1)
|
|
; BE-P10-NEXT: stdu r1, -112(r1)
|
|
; BE-P10-NEXT: bl callee
|
|
; BE-P10-NEXT: nop
|
|
; BE-P10-NEXT: li r3, 0
|
|
; BE-P10-NEXT: addi r1, r1, 112
|
|
; BE-P10-NEXT: ld r0, 16(r1)
|
|
; BE-P10-NEXT: mtlr r0
|
|
; BE-P10-NEXT: blr
|
|
;
|
|
; LE-P9-LABEL: main:
|
|
; LE-P9: # %bb.0: # %_main_entry
|
|
; LE-P9-NEXT: mflr r0
|
|
; LE-P9-NEXT: stdu r1, -32(r1)
|
|
; LE-P9-NEXT: std r0, 48(r1)
|
|
; LE-P9-NEXT: bl callee
|
|
; LE-P9-NEXT: nop
|
|
; LE-P9-NEXT: li r3, 0
|
|
; LE-P9-NEXT: addi r1, r1, 32
|
|
; LE-P9-NEXT: ld r0, 16(r1)
|
|
; LE-P9-NEXT: mtlr r0
|
|
; LE-P9-NEXT: blr
|
|
;
|
|
; BE-P9-LABEL: main:
|
|
; BE-P9: # %bb.0: # %_main_entry
|
|
; BE-P9-NEXT: mflr r0
|
|
; BE-P9-NEXT: stdu r1, -112(r1)
|
|
; BE-P9-NEXT: std r0, 128(r1)
|
|
; BE-P9-NEXT: bl callee
|
|
; BE-P9-NEXT: nop
|
|
; BE-P9-NEXT: li r3, 0
|
|
; BE-P9-NEXT: addi r1, r1, 112
|
|
; BE-P9-NEXT: ld r0, 16(r1)
|
|
; BE-P9-NEXT: mtlr r0
|
|
; BE-P9-NEXT: blr
|
|
_main_entry:
|
|
call void @callee() #1
|
|
ret i32 0
|
|
}
|
|
|
|
; Function Attrs: strictfp
|
|
declare void @callee() #1
|
|
|
|
attributes #0 = { nounwind strictfp }
|
|
attributes #1 = { strictfp }
|