derek.holloway
7502bf64a4
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585 lines
16 KiB
YAML
585 lines
16 KiB
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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# RUN: llc -mtriple aarch64 -run-pass=aarch64-prelegalizer-combiner -verify-machineinstrs %s -o - | FileCheck %s
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name: right_ident_sub
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tracksRegLiveness: true
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body: |
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bb.1.entry:
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liveins: $w0
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; Fold (x - 0) -> x
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;
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; CHECK-LABEL: name: right_ident_sub
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; CHECK: liveins: $w0
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; CHECK: %x:_(s32) = COPY $w0
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; CHECK: $w0 = COPY %x(s32)
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; CHECK: RET_ReallyLR implicit $w0
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%x:_(s32) = COPY $w0
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%cst:_(s32) = G_CONSTANT i32 0
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%op:_(s32) = G_SUB %x(s32), %cst
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$w0 = COPY %op(s32)
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RET_ReallyLR implicit $w0
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...
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---
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name: right_ident_add
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tracksRegLiveness: true
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body: |
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bb.1.entry:
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liveins: $w0
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; Fold (x + 0) -> x
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; CHECK-LABEL: name: right_ident_add
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; CHECK: liveins: $w0
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: %x:_(s32) = COPY $w0
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; CHECK-NEXT: $w0 = COPY %x(s32)
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; CHECK-NEXT: RET_ReallyLR implicit $w0
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%x:_(s32) = COPY $w0
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%cst:_(s32) = G_CONSTANT i32 0
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%op:_(s32) = G_ADD %x(s32), %cst
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$w0 = COPY %op(s32)
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RET_ReallyLR implicit $w0
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...
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---
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name: mul_0
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tracksRegLiveness: true
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body: |
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bb.1.entry:
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liveins: $w0
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; Fold (x * 0) -> 0
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; CHECK-LABEL: name: mul_0
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; CHECK: liveins: $w0
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: %cst:_(s32) = G_CONSTANT i32 0
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; CHECK-NEXT: $w0 = COPY %cst(s32)
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; CHECK-NEXT: RET_ReallyLR implicit $w0
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%x:_(s32) = COPY $w0
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%cst:_(s32) = G_CONSTANT i32 0
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%op:_(s32) = G_MUL %x(s32), %cst
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$w0 = COPY %op(s32)
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RET_ReallyLR implicit $w0
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...
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---
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name: mul_0_cant_replace
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tracksRegLiveness: true
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body: |
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bb.1.entry:
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liveins: $w0
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; Fold (x * 0) -> 0
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; CHECK-LABEL: name: mul_0_cant_replace
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; CHECK: liveins: $w0
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: %x:_(s32) = COPY $w0
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; CHECK-NEXT: %cst:_(s32) = G_CONSTANT i32 0
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; CHECK-NEXT: %op:gpr(s32) = G_MUL %x, %cst
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; CHECK-NEXT: $w0 = COPY %op(s32)
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; CHECK-NEXT: RET_ReallyLR implicit $w0
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%x:_(s32) = COPY $w0
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%cst:_(s32) = G_CONSTANT i32 0
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%op:gpr(s32) = G_MUL %x(s32), %cst
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$w0 = COPY %op(s32)
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RET_ReallyLR implicit $w0
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...
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---
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name: sdiv_0
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tracksRegLiveness: true
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body: |
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bb.1.entry:
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liveins: $w0
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; Fold (0 / x) -> 0
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; CHECK-LABEL: name: sdiv_0
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; CHECK: liveins: $w0
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: %cst:_(s32) = G_CONSTANT i32 0
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; CHECK-NEXT: $w0 = COPY %cst(s32)
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; CHECK-NEXT: RET_ReallyLR implicit $w0
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%x:_(s32) = COPY $w0
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%cst:_(s32) = G_CONSTANT i32 0
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%op:_(s32) = G_SDIV %cst, %x
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$w0 = COPY %op(s32)
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RET_ReallyLR implicit $w0
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...
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---
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name: udiv_0
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tracksRegLiveness: true
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body: |
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bb.1.entry:
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liveins: $w0
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; Fold (0 / x) -> 0
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; CHECK-LABEL: name: udiv_0
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; CHECK: liveins: $w0
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: %cst:_(s32) = G_CONSTANT i32 0
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; CHECK-NEXT: $w0 = COPY %cst(s32)
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; CHECK-NEXT: RET_ReallyLR implicit $w0
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%x:_(s32) = COPY $w0
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%cst:_(s32) = G_CONSTANT i32 0
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%op:_(s32) = G_UDIV %cst, %x
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$w0 = COPY %op(s32)
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RET_ReallyLR implicit $w0
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...
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---
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name: srem_0
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tracksRegLiveness: true
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body: |
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bb.1.entry:
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liveins: $w0
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; Fold (0 % x) -> 0
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; CHECK-LABEL: name: srem_0
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; CHECK: liveins: $w0
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: %cst:_(s32) = G_CONSTANT i32 0
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; CHECK-NEXT: $w0 = COPY %cst(s32)
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; CHECK-NEXT: RET_ReallyLR implicit $w0
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%x:_(s32) = COPY $w0
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%cst:_(s32) = G_CONSTANT i32 0
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%op:_(s32) = G_SREM %cst, %x
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$w0 = COPY %op(s32)
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RET_ReallyLR implicit $w0
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...
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---
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name: urem_0
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tracksRegLiveness: true
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body: |
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bb.1.entry:
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liveins: $w0
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; Fold (0 % x) -> 0
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; CHECK-LABEL: name: urem_0
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; CHECK: liveins: $w0
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: %cst:_(s32) = G_CONSTANT i32 0
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; CHECK-NEXT: $w0 = COPY %cst(s32)
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; CHECK-NEXT: RET_ReallyLR implicit $w0
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%x:_(s32) = COPY $w0
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%cst:_(s32) = G_CONSTANT i32 0
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%op:_(s32) = G_UREM %cst, %x
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$w0 = COPY %op(s32)
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RET_ReallyLR implicit $w0
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...
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---
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name: right_ident_or
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tracksRegLiveness: true
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body: |
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bb.1.entry:
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liveins: $w0
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; Fold (x || 0) -> x
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; CHECK-LABEL: name: right_ident_or
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; CHECK: liveins: $w0
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: %x:_(s32) = COPY $w0
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; CHECK-NEXT: $w0 = COPY %x(s32)
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; CHECK-NEXT: RET_ReallyLR implicit $w0
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%x:_(s32) = COPY $w0
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%cst:_(s32) = G_CONSTANT i32 0
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%op:_(s32) = G_OR %x(s32), %cst
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$w0 = COPY %op(s32)
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RET_ReallyLR implicit $w0
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...
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---
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name: right_ident_xor
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tracksRegLiveness: true
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body: |
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bb.1.entry:
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liveins: $w0
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; Fold (x | 0) -> x
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; CHECK-LABEL: name: right_ident_xor
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; CHECK: liveins: $w0
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: %x:_(s32) = COPY $w0
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; CHECK-NEXT: $w0 = COPY %x(s32)
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; CHECK-NEXT: RET_ReallyLR implicit $w0
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%x:_(s32) = COPY $w0
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%cst:_(s32) = G_CONSTANT i32 0
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%op:_(s32) = G_XOR %x(s32), %cst
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$w0 = COPY %op(s32)
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RET_ReallyLR implicit $w0
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...
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---
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name: right_ident_shl
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tracksRegLiveness: true
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body: |
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bb.1.entry:
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liveins: $w0
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; Fold (x << 0) -> x
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; CHECK-LABEL: name: right_ident_shl
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; CHECK: liveins: $w0
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: %x:_(s32) = COPY $w0
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; CHECK-NEXT: $w0 = COPY %x(s32)
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; CHECK-NEXT: RET_ReallyLR implicit $w0
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%x:_(s32) = COPY $w0
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%cst:_(s32) = G_CONSTANT i32 0
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%op:_(s32) = G_SHL %x(s32), %cst
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$w0 = COPY %op(s32)
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RET_ReallyLR implicit $w0
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...
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---
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name: right_ident_ashr
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tracksRegLiveness: true
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body: |
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bb.1.entry:
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liveins: $w0
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; Fold (x ashr 0) -> x
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; CHECK-LABEL: name: right_ident_ashr
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; CHECK: liveins: $w0
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: %x:_(s32) = COPY $w0
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; CHECK-NEXT: $w0 = COPY %x(s32)
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; CHECK-NEXT: RET_ReallyLR implicit $w0
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%x:_(s32) = COPY $w0
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%cst:_(s32) = G_CONSTANT i32 0
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%op:_(s32) = G_ASHR %x(s32), %cst
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$w0 = COPY %op(s32)
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RET_ReallyLR implicit $w0
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...
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---
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name: right_ident_lshr
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tracksRegLiveness: true
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body: |
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bb.1.entry:
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liveins: $w0
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; Fold (x lshr 0) -> x
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; CHECK-LABEL: name: right_ident_lshr
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; CHECK: liveins: $w0
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: %x:_(s32) = COPY $w0
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; CHECK-NEXT: $w0 = COPY %x(s32)
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; CHECK-NEXT: RET_ReallyLR implicit $w0
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%x:_(s32) = COPY $w0
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%cst:_(s32) = G_CONSTANT i32 0
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%op:_(s32) = G_LSHR %x(s32), %cst
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$w0 = COPY %op(s32)
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RET_ReallyLR implicit $w0
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...
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---
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name: dont_fold_sub
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tracksRegLiveness: true
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body: |
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bb.1.entry:
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liveins: $w0
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; Not an identity, no folding.
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; CHECK-LABEL: name: dont_fold_sub
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; CHECK: liveins: $w0
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: %x:_(s32) = COPY $w0
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; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 -1
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; CHECK-NEXT: %op:_(s32) = G_ADD %x, [[C]]
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; CHECK-NEXT: $w0 = COPY %op(s32)
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; CHECK-NEXT: RET_ReallyLR implicit $w0
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%x:_(s32) = COPY $w0
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%cst:_(s32) = G_CONSTANT i32 1
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%op:_(s32) = G_SUB %x(s32), %cst
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$w0 = COPY %op(s32)
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RET_ReallyLR implicit $w0
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...
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---
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name: look_through_zext
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $x0
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; CHECK-LABEL: name: look_through_zext
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; CHECK: liveins: $x0
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: %zext_zero:_(s64) = G_CONSTANT i64 0
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; CHECK-NEXT: $x0 = COPY %zext_zero(s64)
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; CHECK-NEXT: RET_ReallyLR implicit $x0
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%zero:_(s8) = G_CONSTANT i8 0
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%zext_zero:_(s64) = G_ZEXT %zero(s8)
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%c:_(s64) = G_CONSTANT i64 72340172838076673
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%mul:_(s64) = G_MUL %c, %zext_zero
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$x0 = COPY %mul(s64)
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RET_ReallyLR implicit $x0
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...
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---
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name: right_ident_ptr_add
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tracksRegLiveness: true
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body: |
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bb.1.entry:
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liveins: $x0
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; Fold (x + 0) -> x
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; CHECK-LABEL: name: right_ident_ptr_add
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; CHECK: liveins: $x0
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: %x:_(p0) = COPY $x0
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; CHECK-NEXT: $x0 = COPY %x(p0)
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; CHECK-NEXT: RET_ReallyLR implicit $x0
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%x:_(p0) = COPY $x0
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%cst:_(s64) = G_CONSTANT i64 0
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%op:_(p0) = G_PTR_ADD %x(p0), %cst
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$x0 = COPY %op(p0)
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RET_ReallyLR implicit $x0
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...
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---
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name: right_identity_rotl
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $w0, $w1
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; CHECK-LABEL: name: right_identity_rotl
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; CHECK: liveins: $w0, $w1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: %copy:_(s32) = COPY $w0
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; CHECK-NEXT: $w0 = COPY %copy(s32)
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; CHECK-NEXT: RET_ReallyLR implicit $w0
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%copy:_(s32) = COPY $w0
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%zero:_(s32) = G_CONSTANT i32 0
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%rot:_(s32) = G_ROTL %copy(s32), %zero(s32)
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$w0 = COPY %rot(s32)
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RET_ReallyLR implicit $w0
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...
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...
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---
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name: right_identity_rotr
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $w0, $w1
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; CHECK-LABEL: name: right_identity_rotr
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; CHECK: liveins: $w0, $w1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: %copy:_(s32) = COPY $w0
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; CHECK-NEXT: $w0 = COPY %copy(s32)
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; CHECK-NEXT: RET_ReallyLR implicit $w0
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%copy:_(s32) = COPY $w0
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%zero:_(s32) = G_CONSTANT i32 0
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%rot:_(s32) = G_ROTR %copy(s32), %zero(s32)
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$w0 = COPY %rot(s32)
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RET_ReallyLR implicit $w0
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...
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---
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name: lshr_of_vec_zero
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body: |
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bb.1:
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liveins: $q0
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; CHECK-LABEL: name: lshr_of_vec_zero
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; CHECK: liveins: $q0
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:_(<8 x s16>) = COPY $q0
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; CHECK-NEXT: $q0 = COPY [[COPY]](<8 x s16>)
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; CHECK-NEXT: RET_ReallyLR implicit $q0
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%0:_(<8 x s16>) = COPY $q0
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%5:_(s16) = G_CONSTANT i16 0
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%zero_vec:_(<8 x s16>) = G_BUILD_VECTOR %5(s16), %5(s16), %5(s16), %5(s16), %5(s16), %5(s16), %5(s16), %5(s16)
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%shift:_(<8 x s16>) = G_LSHR %0, %zero_vec(<8 x s16>)
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$q0 = COPY %shift(<8 x s16>)
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RET_ReallyLR implicit $q0
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...
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---
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name: ptradd_of_vec_zero
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body: |
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bb.1:
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liveins: $q0
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; CHECK-LABEL: name: ptradd_of_vec_zero
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; CHECK: liveins: $q0
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:_(<2 x p0>) = COPY $q0
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; CHECK-NEXT: $q0 = COPY [[COPY]](<2 x p0>)
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; CHECK-NEXT: RET_ReallyLR implicit $q0
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%0:_(<2 x p0>) = COPY $q0
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%5:_(s64) = G_CONSTANT i64 0
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%zero_vec:_(<2 x s64>) = G_BUILD_VECTOR %5(s64), %5(s64)
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%ptr:_(<2 x p0>) = G_PTR_ADD %0, %zero_vec(<2 x s64>)
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$q0 = COPY %ptr(<2 x p0>)
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RET_ReallyLR implicit $q0
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...
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---
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name: i128_or_cst
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liveins:
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- { reg: '$x0' }
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body: |
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bb.1:
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liveins: $x0
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; CHECK-LABEL: name: i128_or_cst
|
|
; CHECK: liveins: $x0
|
|
; CHECK-NEXT: {{ $}}
|
|
; CHECK-NEXT: [[COPY:%[0-9]+]]:_(p0) = COPY $x0
|
|
; CHECK-NEXT: [[LOAD:%[0-9]+]]:_(s128) = G_LOAD [[COPY]](p0) :: (load (s128))
|
|
; CHECK-NEXT: [[C:%[0-9]+]]:_(s128) = G_CONSTANT i128 9223372036854775808
|
|
; CHECK-NEXT: [[OR:%[0-9]+]]:_(s128) = G_OR [[LOAD]], [[C]]
|
|
; CHECK-NEXT: G_STORE [[OR]](s128), [[COPY]](p0) :: (store (s128), align 4)
|
|
; CHECK-NEXT: RET_ReallyLR
|
|
%0:_(p0) = COPY $x0
|
|
%2:_(s128) = G_LOAD %0(p0) :: (load (s128))
|
|
%4:_(s128) = G_CONSTANT i128 9223372036854775808
|
|
%5:_(s128) = G_OR %2, %4
|
|
G_STORE %5(s128), %0(p0) :: (store (s128), align 4)
|
|
RET_ReallyLR
|
|
|
|
...
|
|
---
|
|
name: mul_1_shift_of_shift
|
|
liveins:
|
|
- { reg: '$x0' }
|
|
body: |
|
|
bb.1:
|
|
liveins: $x0
|
|
|
|
; CHECK-LABEL: name: mul_1_shift_of_shift
|
|
; CHECK: liveins: $x0
|
|
; CHECK-NEXT: {{ $}}
|
|
; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s64) = COPY $x0
|
|
; CHECK-NEXT: [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 1
|
|
; CHECK-NEXT: [[SHL:%[0-9]+]]:_(s64) = G_SHL [[COPY]], [[C]](s64)
|
|
; CHECK-NEXT: [[OR:%[0-9]+]]:_(s64) = G_OR [[SHL]], [[C]]
|
|
; CHECK-NEXT: $x0 = COPY [[OR]](s64)
|
|
; CHECK-NEXT: RET_ReallyLR implicit $x0
|
|
%0:_(s64) = COPY $x0
|
|
%1:_(s64) = G_CONSTANT i64 1
|
|
%2:_(s64) = G_SHL %0, %1(s64)
|
|
%3:_(s64) = G_OR %2, %1
|
|
%4:_(s64) = G_MUL %3, %1
|
|
$x0 = COPY %4(s64)
|
|
RET_ReallyLR implicit $x0
|
|
|
|
...
|
|
---
|
|
name: udiv_of_sext
|
|
alignment: 4
|
|
tracksRegLiveness: true
|
|
liveins:
|
|
- { reg: '$w0' }
|
|
body: |
|
|
bb.1:
|
|
liveins: $w0
|
|
|
|
; CHECK-LABEL: name: udiv_of_sext
|
|
; CHECK: liveins: $w0
|
|
; CHECK-NEXT: {{ $}}
|
|
; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
|
|
; CHECK-NEXT: $w0 = COPY [[C]](s32)
|
|
; CHECK-NEXT: RET_ReallyLR implicit $w0
|
|
%2:_(s1) = G_CONSTANT i1 true
|
|
%4:_(s2) = G_CONSTANT i2 1
|
|
%3:_(s2) = G_SEXT %2:_(s1)
|
|
%5:_(s2) = G_UDIV %4:_, %3:_
|
|
%6:_(s32) = G_ANYEXT %5:_(s2)
|
|
$w0 = COPY %6:_(s32)
|
|
RET_ReallyLR implicit $w0
|
|
|
|
...
|
|
---
|
|
name: sub_to_add
|
|
tracksRegLiveness: true
|
|
body: |
|
|
bb.1.entry:
|
|
liveins: $w0
|
|
; CHECK-LABEL: name: sub_to_add
|
|
; CHECK: liveins: $w0
|
|
; CHECK-NEXT: {{ $}}
|
|
; CHECK-NEXT: %x:_(s32) = COPY $w0
|
|
; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 -1
|
|
; CHECK-NEXT: %op:_(s32) = G_ADD %x, [[C]]
|
|
; CHECK-NEXT: $w0 = COPY %op(s32)
|
|
; CHECK-NEXT: RET_ReallyLR implicit $w0
|
|
%x:_(s32) = COPY $w0
|
|
%cst:_(s32) = G_CONSTANT i32 1
|
|
%op:_(s32) = G_SUB %x(s32), %cst
|
|
$w0 = COPY %op(s32)
|
|
RET_ReallyLR implicit $w0
|
|
|
|
...
|
|
---
|
|
name: sub_to_add_nuw
|
|
tracksRegLiveness: true
|
|
body: |
|
|
bb.1.entry:
|
|
liveins: $w0
|
|
; CHECK-LABEL: name: sub_to_add_nuw
|
|
; CHECK: liveins: $w0
|
|
; CHECK-NEXT: {{ $}}
|
|
; CHECK-NEXT: %x:_(s32) = COPY $w0
|
|
; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 -1
|
|
; CHECK-NEXT: %op:_(s32) = G_ADD %x, [[C]]
|
|
; CHECK-NEXT: $w0 = COPY %op(s32)
|
|
; CHECK-NEXT: RET_ReallyLR implicit $w0
|
|
%x:_(s32) = COPY $w0
|
|
%cst:_(s32) = G_CONSTANT i32 1
|
|
%op:_(s32) = nuw G_SUB %x(s32), %cst
|
|
$w0 = COPY %op(s32)
|
|
RET_ReallyLR implicit $w0
|
|
|
|
...
|
|
---
|
|
name: sub_to_add_nsw
|
|
tracksRegLiveness: true
|
|
body: |
|
|
bb.1.entry:
|
|
liveins: $w0
|
|
; CHECK-LABEL: name: sub_to_add_nsw
|
|
; CHECK: liveins: $w0
|
|
; CHECK-NEXT: {{ $}}
|
|
; CHECK-NEXT: %x:_(s32) = COPY $w0
|
|
; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 -1
|
|
; CHECK-NEXT: %op:_(s32) = nsw G_ADD %x, [[C]]
|
|
; CHECK-NEXT: $w0 = COPY %op(s32)
|
|
; CHECK-NEXT: RET_ReallyLR implicit $w0
|
|
%x:_(s32) = COPY $w0
|
|
%cst:_(s32) = G_CONSTANT i32 1
|
|
%op:_(s32) = nsw G_SUB %x(s32), %cst
|
|
$w0 = COPY %op(s32)
|
|
RET_ReallyLR implicit $w0
|
|
|
|
...
|
|
---
|
|
name: sub_to_add_nsw_128
|
|
body: |
|
|
bb.0:
|
|
liveins: $w0, $w1
|
|
|
|
; CHECK-LABEL: name: sub_to_add_nsw_128
|
|
; CHECK: liveins: $w0, $w1
|
|
; CHECK-NEXT: {{ $}}
|
|
; CHECK-NEXT: %a:_(s32) = COPY $w0
|
|
; CHECK-NEXT: %b:_(s8) = G_TRUNC %a(s32)
|
|
; CHECK-NEXT: %c:_(s8) = G_CONSTANT i8 -128
|
|
; CHECK-NEXT: %add:_(s8) = G_ADD %b, %c
|
|
; CHECK-NEXT: %d:_(s32) = G_ZEXT %add(s8)
|
|
; CHECK-NEXT: $w0 = COPY %d(s32)
|
|
; CHECK-NEXT: RET_ReallyLR implicit $x0
|
|
%a:_(s32) = COPY $w0
|
|
%b:_(s8) = G_TRUNC %a
|
|
%c:_(s8) = G_CONSTANT i8 -128
|
|
%add:_(s8) = nsw nuw G_SUB %b, %c
|
|
%d:_(s32) = G_ZEXT %add
|
|
$w0 = COPY %d
|
|
RET_ReallyLR implicit $x0
|
|
|
|
...
|
|
---
|
|
name: sub_to_add_nsw_intmin
|
|
body: |
|
|
bb.0:
|
|
liveins: $w0, $w1
|
|
|
|
; CHECK-LABEL: name: sub_to_add_nsw_intmin
|
|
; CHECK: liveins: $w0, $w1
|
|
; CHECK-NEXT: {{ $}}
|
|
; CHECK-NEXT: %a:_(s32) = COPY $w0
|
|
; CHECK-NEXT: %c:_(s32) = G_CONSTANT i32 -2147483648
|
|
; CHECK-NEXT: %add:_(s32) = G_ADD %a, %c
|
|
; CHECK-NEXT: $w0 = COPY %add(s32)
|
|
; CHECK-NEXT: RET_ReallyLR implicit $x0
|
|
%a:_(s32) = COPY $w0
|
|
%c:_(s32) = G_CONSTANT i32 -2147483648
|
|
%add:_(s32) = nsw nuw G_SUB %a, %c
|
|
$w0 = COPY %add
|
|
RET_ReallyLR implicit $x0
|
|
...
|