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TheRock/compiler/amd-llvm/llvm/test/CodeGen/AArch64/GlobalISel/knownbits-srem.mir
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derek.holloway 7502bf64a4
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2026-09-02 16:34:47 -07:00

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# RUN: llc -mtriple aarch64 -passes="print<gisel-value-tracking>" %s -filetype=null 2>&1 | FileCheck %s
# CHECK-LABEL: name: @srem_pow2
# CHECK-NEXT: %0:_ KnownBits:???????????????????????????????? SignBits:1
# CHECK-NEXT: %1:_ KnownBits:00000000000000000000000000001000 SignBits:28
# CHECK-NEXT: %2:_ KnownBits:???????????????????????????????? SignBits:1
---
name: srem_pow2
body: |
bb.1:
liveins: $w0
%0:_(s32) = COPY $w0
%1:_(s32) = G_CONSTANT i32 8
%2:_(s32) = G_SREM %0, %1
$w0 = COPY %2(s32)
RET_ReallyLR implicit $w0
...
# CHECK-LABEL: name: @srem_non_pow2
# CHECK-NEXT: %0:_ KnownBits:???????????????????????????????? SignBits:1
# CHECK-NEXT: %1:_ KnownBits:00000000000000000000000000001010 SignBits:28
# CHECK-NEXT: %2:_ KnownBits:???????????????????????????????? SignBits:1
---
name: srem_non_pow2
body: |
bb.1:
liveins: $w0
%0:_(s32) = COPY $w0
%1:_(s32) = G_CONSTANT i32 10
%2:_(s32) = G_SREM %0, %1
$w0 = COPY %2(s32)
RET_ReallyLR implicit $w0
...
# CHECK-LABEL: name: @srem
# CHECK-NEXT: %0:_ KnownBits:???????????????????????????????? SignBits:1
# CHECK-NEXT: %1:_ KnownBits:???????????????????????????????? SignBits:1
# CHECK-NEXT: %2:_ KnownBits:???????????????????????????????? SignBits:1
---
name: srem
body: |
bb.1:
liveins: $w0, $w1
%0:_(s32) = COPY $w0
%1:_(s32) = COPY $w1
%2:_(s32) = G_SREM %0, %1
$w0 = COPY %2(s32)
RET_ReallyLR implicit $w0
...
# CHECK-LABEL: name: @srem_implicit_def
# CHECK-NEXT: %0:_ KnownBits:???????????????????????????????? SignBits:1
# CHECK-NEXT: %1:_ KnownBits:00000000000000000000000000001000 SignBits:28
# CHECK-NEXT: %2:_ KnownBits:???????????????????????????????? SignBits:1
---
name: srem_implicit_def
body: |
bb.1:
liveins: $w0
%0:_(s32) = G_IMPLICIT_DEF
%1:_(s32) = G_CONSTANT i32 8
%2:_(s32) = G_SREM %0, %1
$w0 = COPY %2(s32)
RET_ReallyLR implicit $w0
...
# CHECK-LABEL: name: @srem_both_implicit_def
# CHECK-NEXT: %0:_ KnownBits:???????????????????????????????? SignBits:1
# CHECK-NEXT: %1:_ KnownBits:???????????????????????????????? SignBits:1
# CHECK-NEXT: %2:_ KnownBits:???????????????????????????????? SignBits:1
---
name: srem_both_implicit_def
body: |
bb.1:
%0:_(s32) = G_IMPLICIT_DEF
%1:_(s32) = G_IMPLICIT_DEF
%2:_(s32) = G_SREM %0, %1
$w0 = COPY %2(s32)
RET_ReallyLR implicit $w0
...
# CHECK-LABEL: name: @srem_const_const
# CHECK-NEXT: %0:_ KnownBits:00000000000000000000000000001010 SignBits:28
# CHECK-NEXT: %1:_ KnownBits:00000000000000000000000000000011 SignBits:30
# CHECK-NEXT: %2:_ KnownBits:000000000000000000000000000000?? SignBits:28
---
name: srem_const_const
body: |
bb.1:
%0:_(s32) = G_CONSTANT i32 10
%1:_(s32) = G_CONSTANT i32 3
%2:_(s32) = G_SREM %0, %1
$w0 = COPY %2(s32)
RET_ReallyLR implicit $w0
...
# CHECK-LABEL: name: @numsignbits_srem
# CHECK-NEXT: %0:_ KnownBits:???????????????????????????????? SignBits:1
# CHECK-NEXT: %1:_ KnownBits:00000000000000000000000000001000 SignBits:28
# CHECK-NEXT: %2:_ KnownBits:???????????????????????????????? SignBits:1
---
name: numsignbits_srem
body: |
bb.1:
liveins: $w0
%0:_(s32) = COPY $w0
%1:_(s32) = G_CONSTANT i32 8
%2:_(s32) = G_SREM %0, %1
$w0 = COPY %2(s32)
RET_ReallyLR implicit $w0
...
# CHECK-LABEL: name: @numsignbits_srem_negative
# CHECK-NEXT: %0:_ KnownBits:???????????????????????????????? SignBits:1
# CHECK-NEXT: %1:_ KnownBits:11111111111111111111111111111000 SignBits:29
# CHECK-NEXT: %2:_ KnownBits:???????????????????????????????? SignBits:1
---
name: numsignbits_srem_negative
body: |
bb.1:
liveins: $w0
%0:_(s32) = COPY $w0
%1:_(s32) = G_CONSTANT i32 -8
%2:_(s32) = G_SREM %0, %1
$w0 = COPY %2(s32)
RET_ReallyLR implicit $w0
...
# CHECK-LABEL: name: @numsignbits_srem_const_const
# CHECK-NEXT: %0:_ KnownBits:00000000000000000000000000001010 SignBits:28
# CHECK-NEXT: %1:_ KnownBits:00000000000000000000000000000011 SignBits:30
# CHECK-NEXT: %2:_ KnownBits:000000000000000000000000000000?? SignBits:28
---
name: numsignbits_srem_const_const
body: |
bb.1:
%0:_(s32) = G_CONSTANT i32 10
%1:_(s32) = G_CONSTANT i32 3
%2:_(s32) = G_SREM %0, %1
$w0 = COPY %2(s32)
RET_ReallyLR implicit $w0
...