derek.holloway
7502bf64a4
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95 lines
2.2 KiB
YAML
95 lines
2.2 KiB
YAML
# RUN: llc -o - %s -mtriple=s390x-linux-gnu -mcpu=z16 -verify-machineinstrs \
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# RUN: -run-pass=machine-scheduler 2>&1 | FileCheck %s
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# The COPY to r2 should be right before the return.
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# CHECK: name: fun0
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# CHECK: $r2d = COPY %0
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# CHECK-NEXT: Return implicit $r2d
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---
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name: fun0
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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%0:gr64bit = LGHI 0
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$r2d = COPY %0
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%1:gr64bit = LGHI 0
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Return implicit $r2d
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...
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# The COPY from r2 should be first.
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# CHECK: name: fun1
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# CHECK: liveins: $r2
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# CHECK-NEXT: {{ $}}
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# CHECK-NEXT: %2:gr64bit = COPY $r2
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---
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name: fun1
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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liveins: $r2d
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%0:gr64bit = LGHI 1
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%1:gr64bit = COPY %0
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%2:gr64bit = COPY %1
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%2:gr64bit = COPY $r2d
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$r2d = COPY %2
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Return implicit $r2d
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...
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# The LGHI to r2 should be right before the return.
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# CHECK: name: fun2
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# CHECK: $r2d = LGHI 0
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# CHECK-NEXT: Return implicit $r2d
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---
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name: fun2
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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%0:gr64bit = LGHI 0
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$r2d = LGHI 0
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%1:gr64bit = LGHI 0
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Return implicit $r2d
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...
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# The LA to r2 should be right before the return.
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# CHECK: name: fun3
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# CHECK: $r2d = LA %stack.0, 0, $noreg
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# CHECK-NEXT: Return implicit $r2d
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---
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name: fun3
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tracksRegLiveness: true
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stack:
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- { id: 0, size: 8 }
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body: |
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bb.0:
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$r2d = LA %stack.0, 0, $noreg
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%0:gr64bit = LGHI 0
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Return implicit killed $r2d
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...
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# Don't reorder phys-reg COPYs. Recognize LA to PReg with a VReg use.
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# CHECK: name: fun4
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# CHECK: %0:addr64bit = COPY $r2d
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# CHECK-NEXT: dead %3:gr64bit = COPY $r3d
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# CHECK-NEXT: %1:gr64bit = AGRK %0, %0, implicit-def $cc
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# CHECK-NEXT: dead %2:gr64bit = AGRK %1, %0, implicit-def $cc
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# CHECK-NEXT: $r2d = LA %0, 0, $noreg
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# CHECK-NEXT: Return
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---
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name: fun4
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tracksRegLiveness: true
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stack:
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- { id: 0, size: 8 }
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body: |
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bb.0.entry:
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liveins: $r2d, $r3d
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%0:addr64bit = COPY $r2d
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%2:gr64bit = AGRK %0, %0, implicit-def $cc
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$r2d = LA %0, 0, $noreg
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%3:gr64bit = AGRK %2, %0, implicit-def $cc
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%1:gr64bit = COPY $r3d
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Return
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...
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