derek.holloway
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86 lines
2.8 KiB
YAML
86 lines
2.8 KiB
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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# RUN: llc -run-pass early-machinelicm -mtriple=powerpc64le-unknown-linux-gnu \
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# RUN: -verify-machineinstrs %s -o - | FileCheck %s
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# RUN: llc -passes early-machinelicm -mtriple=powerpc64le-unknown-linux-gnu \
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# RUN: %s -o - | FileCheck %s
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name: deadFlagAfterCSE
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# This case tests that after the dead %3 is CSE-ed with hoisted %5 in MachineLICM
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# pass, the dead flag will be cleared for %3 if %5 has users.
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tracksRegLiveness: true
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body: |
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; CHECK-LABEL: name: deadFlagAfterCSE
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; CHECK: bb.0:
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; CHECK: successors: %bb.1(0x80000000)
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; CHECK: liveins: $x3, $x4
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; CHECK: [[COPY:%[0-9]+]]:g8rc = COPY $x3
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; CHECK: [[COPY1:%[0-9]+]]:g8rc = COPY $x4
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; CHECK: [[ADD8_:%[0-9]+]]:g8rc_and_g8rc_nox0 = ADD8 [[COPY]], [[COPY1]]
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; CHECK: [[ADDI8_:%[0-9]+]]:g8rc_and_g8rc_nox0 = ADDI8 [[ADD8_]], 100
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; CHECK: B %bb.1
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; CHECK: bb.1:
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; CHECK: successors: %bb.1(0x80000000)
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; CHECK: [[PHI:%[0-9]+]]:g8rc_and_g8rc_nox0 = PHI [[ADD8_]], %bb.0, %5, %bb.1
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; CHECK: STDX [[PHI]], [[ADDI8_]], [[ADD8_]]
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; CHECK: [[ADDI8_1:%[0-9]+]]:g8rc = nuw ADDI8 [[PHI]], 1
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; CHECK: B %bb.1
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; CHECK: bb.2:
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; CHECK: BLR8 implicit $lr8, implicit $rm
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bb.0:
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liveins: $x3, $x4
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%0:g8rc = COPY $x3
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%1:g8rc = COPY $x4
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%2:g8rc_and_g8rc_nox0 = ADD8 %0, %1
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dead %3:g8rc_and_g8rc_nox0 = ADDI8 %2, 100
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B %bb.1
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bb.1:
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%4:g8rc_and_g8rc_nox0 = PHI %2, %bb.0, %6, %bb.1
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%5:g8rc_and_g8rc_nox0 = ADDI8 %2, 100
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STDX %4, %5, %2
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%6:g8rc = nuw ADDI8 %4, 1
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B %bb.1
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bb.2:
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BLR8 implicit $lr8, implicit $rm
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...
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---
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name: deadFlagAfterCSE2
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# This case tests that after the dead %3 is CSE-ed with hoisted dead %5 in
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# MachineLICM pass, the dead flag will be kept.
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tracksRegLiveness: true
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body: |
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; CHECK-LABEL: name: deadFlagAfterCSE2
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; CHECK: bb.0:
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; CHECK: successors: %bb.1(0x80000000)
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; CHECK: liveins: $x3, $x4
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; CHECK: [[COPY:%[0-9]+]]:g8rc = COPY $x3
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; CHECK: [[COPY1:%[0-9]+]]:g8rc = COPY $x4
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; CHECK: [[ADD8_:%[0-9]+]]:g8rc_and_g8rc_nox0 = ADD8 [[COPY]], [[COPY1]]
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; CHECK: dead %3:g8rc_and_g8rc_nox0 = ADDI8 [[ADD8_]], 100
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; CHECK: B %bb.1
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; CHECK: bb.1:
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; CHECK: successors: %bb.1(0x80000000)
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; CHECK: [[PHI:%[0-9]+]]:g8rc_and_g8rc_nox0 = PHI [[ADD8_]], %bb.0, %5, %bb.1
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; CHECK: [[ADDI8_:%[0-9]+]]:g8rc = nuw ADDI8 [[PHI]], 1
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; CHECK: B %bb.1
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; CHECK: bb.2:
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; CHECK: BLR8 implicit $lr8, implicit $rm
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bb.0:
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liveins: $x3, $x4
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%0:g8rc = COPY $x3
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%1:g8rc = COPY $x4
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%2:g8rc_and_g8rc_nox0 = ADD8 %0, %1
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dead %3:g8rc_and_g8rc_nox0 = ADDI8 %2, 100
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B %bb.1
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bb.1:
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%4:g8rc_and_g8rc_nox0 = PHI %2, %bb.0, %6, %bb.1
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dead %5:g8rc_and_g8rc_nox0 = ADDI8 %2, 100
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%6:g8rc = nuw ADDI8 %4, 1
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B %bb.1
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bb.2:
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BLR8 implicit $lr8, implicit $rm
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...
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