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|
# RUN: llc -run-pass arm-prera-ldst-opt %s -o - | FileCheck %s
# RUN: llc -run-pass arm-prera-ldst-opt -arm-prera-ldst-opt-reorder-limit=3 %s -o - | FileCheck %s
# RUN: llc -run-pass arm-prera-ldst-opt -arm-prera-ldst-opt-reorder-limit=2 %s -o - | FileCheck %s --check-prefix=CHECK-LIMIT
--- |
target triple = "thumbv7---eabi"
define void @a(i32* nocapture %x, i32 %y, i32 %z) {
entry:
ret void
}
define void @b(i32* nocapture %x, i32 %y, i32 %z) {
entry:
ret void
}
...
---
# CHECK-LABEL: name: a
name: a
alignment: 2
tracksRegLiveness: true
liveins:
- { reg: '$r0', virtual-reg: '%0' }
- { reg: '$r1', virtual-reg: '%1' }
- { reg: '$r2', virtual-reg: '%2' }
body: |
bb.0.entry:
liveins: $r0, $r1, $r2
%2 : rgpr = COPY $r2
%1 : rgpr = COPY $r1
%0 : gpr = COPY $r0
%3 : rgpr = t2MUL %2, %2, 14, $noreg
%4 : rgpr = t2MUL %1, %1, 14, $noreg
%5 : rgpr = t2MOVi32imm -858993459
%6 : rgpr, %7 : rgpr = t2UMULL killed %3, %5, 14, $noreg
%8 : rgpr, %9 : rgpr = t2UMULL killed %4, %5, 14, $noreg
t2STRi12 %1, %0, 0, 14, $noreg :: (store (s32))
%10 : rgpr = t2LSLri %2, 1, 14, $noreg, $noreg
t2STRi12 killed %10, %0, 4, 14, $noreg :: (store (s32))
; Make sure we move the paired stores next to each other, and
; insert them in an appropriate location.
; CHECK: t2STRi12 %1,
; CHECK-NEXT: t2STRi12 killed %10,
; CHECK-NEXT: t2MOVi
; CHECK-NEXT: t2ADDrs
%11 : rgpr = t2MOVi 55, 14, $noreg, $noreg
%12 : gprnopc = t2ADDrs %11, killed %7, 19, 14, $noreg, $noreg
t2STRi12 killed %12, %0, 16, 14, $noreg :: (store (s32))
%13 : gprnopc = t2ADDrs %11, killed %9, 19, 14, $noreg, $noreg
t2STRi12 killed %13, %0, 20, 14, $noreg :: (store (s32))
; Make sure we move the paired stores next to each other.
; CHECK: t2STRi12 killed %12,
; CHECK-NEXT: t2STRi12 killed %13,
tBX_RET 14, $noreg
---
# CHECK-LABEL: name: b
name: b
alignment: 2
tracksRegLiveness: true
liveins:
- { reg: '$r0', virtual-reg: '%0' }
- { reg: '$r1', virtual-reg: '%1' }
- { reg: '$r2', virtual-reg: '%2' }
body: |
bb.0.entry:
liveins: $r0, $r1, $r2
%2 : rgpr = COPY $r2
%1 : rgpr = COPY $r1
%0 : gpr = COPY $r0
t2STRi12 %1, %0, 0, 14, $noreg :: (store (s32))
%10 : rgpr = t2LSLri %2, 1, 14, $noreg, $noreg
t2STRi12 killed %10, %0, 4, 14, $noreg :: (store (s32))
%3 : rgpr = t2MUL %2, %2, 14, $noreg
t2STRi12 %3, %0, 8, 14, $noreg :: (store (s32))
; Make sure we move the paired stores next to each other, and
; insert them in an appropriate location.
; CHECK: t2STRi12 {{.*}}, 0
; CHECK-NEXT: t2STRi12 {{.*}}, 4
; CHECK-NEXT: t2STRi12 {{.*}}, 8
; CHECK-NEXT: t2MUL
; CHECK-NEXT: t2MOVi32imm
; CHECK-LIMIT-LABEL: name: b
; CHECK-LIMIT: t2STRi12 {{.*}}, 0
; CHECK-LIMIT-NEXT: t2STRi12 {{.*}}, 4
; CHECK-LIMIT-NEXT: t2MUL
; CHECK-LIMIT-NEXT: t2STRi12 {{.*}}, 8
%4 : rgpr = t2MUL %1, %1, 14, $noreg
%5 : rgpr = t2MOVi32imm -858993459
%6 : rgpr, %7 : rgpr = t2UMULL killed %3, %5, 14, $noreg
%8 : rgpr, %9 : rgpr = t2UMULL killed %4, %5, 14, $noreg
%10 : rgpr = t2LSLri %2, 1, 14, $noreg, $noreg
%11 : rgpr = t2MOVi 55, 14, $noreg, $noreg
%12 : gprnopc = t2ADDrs %11, killed %7, 19, 14, $noreg, $noreg
t2STRi12 killed %12, %0, 16, 14, $noreg :: (store (s32))
%13 : gprnopc = t2ADDrs %11, killed %9, 19, 14, $noreg, $noreg
t2STRi12 killed %13, %0, 20, 14, $noreg :: (store (s32))
; Make sure we move the paired stores next to each other.
; CHECK: t2STRi12 {{.*}}, 16
; CHECK-NEXT: t2STRi12 {{.*}}, 20
tBX_RET 14, $noreg
...
|
