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4cc65c325c
This patch adds a function to do following transformation: %0:g8rc_and_g8rc_nox0 = ADDI8 %5:g8rc_and_g8rc_nox0, 144 STD killed %7:g8rc, 16, %0:g8rc_and_g8rc_nox0 :: (store 8 into %ir.8) ------> STD killed %7:g8rc, 160, %5:g8rc_and_g8rc_nox0 :: (store 8 into %ir.8) Reviewed By: steven.zhang Differential Revision: https://reviews.llvm.org/D81723
68 lines
1.9 KiB
YAML
68 lines
1.9 KiB
YAML
# RUN: llc -mtriple=powerpc64le-unknown-linux-gnu -verify-machineinstrs \
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# RUN: -run-pass ppc-mi-peepholes -ppc-convert-rr-to-ri %s -o - | FileCheck %s
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---
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name: foldNewDformStore
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# CHECK: name: foldNewDformStore
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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liveins: $x3
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%0:g8rc_and_g8rc_nox0 = COPY $x3
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%1:g8rc_and_g8rc_nox0 = ADDI8 %0:g8rc_and_g8rc_nox0, 144
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%2:g8rc = LI8 0
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; CHECK: STD killed %2, 160, %0
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STD killed %2:g8rc, 16, %1:g8rc_and_g8rc_nox0
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BLR8 implicit $lr8, implicit $rm
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...
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---
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name: foldNewDformStoreAlignNotMatch
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# CHECK: name: foldNewDformStoreAlignNotMatch
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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liveins: $x3
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%0:g8rc_and_g8rc_nox0 = COPY $x3
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%1:g8rc_and_g8rc_nox0 = ADDI8 %0:g8rc_and_g8rc_nox0, 141
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%2:g8rc = LI8 0
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; CHECK: STD killed %2, 16, %1
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STD killed %2:g8rc, 16, %1:g8rc_and_g8rc_nox0
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BLR8 implicit $lr8, implicit $rm
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...
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---
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name: foldNewDformStoreKilledFlag
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# CHECK: name: foldNewDformStoreKilledFlag
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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liveins: $x3
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%0:g8rc_and_g8rc_nox0 = COPY $x3
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%1:g8rc_and_g8rc_nox0 = ADDI8 %0:g8rc_and_g8rc_nox0, 144
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%2:g8rc = LI8 0
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; CHECK: STD %1, 0, %0
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STD %1:g8rc_and_g8rc_nox0, 0, killed %0:g8rc_and_g8rc_nox0
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; CHECK: STD killed %2, 160, killed %0
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STD killed %2:g8rc, 16, %1:g8rc_and_g8rc_nox0
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BLR8 implicit $lr8, implicit $rm
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...
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---
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name: foldNewDformPreferLIOperand
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# CHECK: name: foldNewDformPreferLIOperand
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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liveins: $x3
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%0:g8rc_and_g8rc_nox0 = COPY $x3
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%1:g8rc = ADDI8 %0:g8rc_and_g8rc_nox0, 1
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%2:g8rc = LI8 1
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; CHECK: SUBFIC8 killed %1, 1, implicit-def $carry
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%3:g8rc = SUBFC8 killed %1:g8rc, %2:g8rc, implicit-def $carry
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%4:g8rc = SUBFE8 %2:g8rc, %2:g8rc, implicit-def dead $carry, implicit $carry
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%5:g8rc = NEG8 killed %4:g8rc
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$x3 = COPY %5:g8rc
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BLR8 implicit $lr8, implicit $rm, implicit $x3
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...
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