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bolt/deps/llvm-18.1.8/llvm/test/CodeGen/X86/GlobalISel/legalize-trailing-zeros.mir
Sam Vervaeck 174b6f4d4e
Embed LLVM 18.1.8
2025-02-14 19:21:04 +01:00

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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 2
# RUN: llc -mtriple=x86_64-linux-gnu -mattr=+bmi -run-pass=legalizer %s -o - | FileCheck %s --check-prefixes=CHECK,X64
# RUN: llc -mtriple=i386-linux-gnu -mattr=+bmi -run-pass=legalizer %s -o - | FileCheck %s --check-prefixes=CHECK,X86
# test count trailing zeros for s16, s32, and s64
---
name: test_cttz35
alignment: 16
legalized: false
regBankSelected: false
registers:
- { id: 0, class: _, preferred-register: '' }
body: |
bb.1:
; X64-LABEL: name: test_cttz35
; X64: [[COPY:%[0-9]+]]:_(s64) = COPY $rdx
; X64-NEXT: [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 34359738368
; X64-NEXT: [[OR:%[0-9]+]]:_(s64) = G_OR [[COPY]], [[C]]
; X64-NEXT: [[CTTZ_ZERO_UNDEF:%[0-9]+]]:_(s64) = G_CTTZ_ZERO_UNDEF [[OR]](s64)
; X64-NEXT: [[C1:%[0-9]+]]:_(s64) = G_CONSTANT i64 34359738367
; X64-NEXT: [[AND:%[0-9]+]]:_(s64) = G_AND [[CTTZ_ZERO_UNDEF]], [[C1]]
; X64-NEXT: RET 0, implicit [[AND]](s64)
;
; X86-LABEL: name: test_cttz35
; X86: [[COPY:%[0-9]+]]:_(s64) = COPY $rdx
; X86-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
; X86-NEXT: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
; X86-NEXT: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](s64)
; X86-NEXT: [[OR:%[0-9]+]]:_(s32) = G_OR [[UV]], [[C]]
; X86-NEXT: [[OR1:%[0-9]+]]:_(s32) = G_OR [[UV1]], [[C1]]
; X86-NEXT: [[ICMP:%[0-9]+]]:_(s8) = G_ICMP intpred(eq), [[OR]](s32), [[C]]
; X86-NEXT: [[CTTZ_ZERO_UNDEF:%[0-9]+]]:_(s32) = G_CTTZ_ZERO_UNDEF [[OR1]](s32)
; X86-NEXT: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 32
; X86-NEXT: [[UADDO:%[0-9]+]]:_(s32), [[UADDO1:%[0-9]+]]:_(s1) = G_UADDO [[CTTZ_ZERO_UNDEF]], [[C2]]
; X86-NEXT: [[UADDE:%[0-9]+]]:_(s32), [[UADDE1:%[0-9]+]]:_(s1) = G_UADDE [[C]], [[C]], [[UADDO1]]
; X86-NEXT: [[CTTZ_ZERO_UNDEF1:%[0-9]+]]:_(s32) = G_CTTZ_ZERO_UNDEF [[OR]](s32)
; X86-NEXT: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[ICMP]](s8)
; X86-NEXT: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
; X86-NEXT: [[AND:%[0-9]+]]:_(s32) = G_AND [[ANYEXT]], [[C3]]
; X86-NEXT: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[AND]](s32), [[UADDO]], [[CTTZ_ZERO_UNDEF1]]
; X86-NEXT: [[SELECT1:%[0-9]+]]:_(s32) = G_SELECT [[AND]](s32), [[UADDE]], [[C]]
; X86-NEXT: [[C4:%[0-9]+]]:_(s32) = G_CONSTANT i32 -1
; X86-NEXT: [[C5:%[0-9]+]]:_(s32) = G_CONSTANT i32 7
; X86-NEXT: [[AND1:%[0-9]+]]:_(s32) = G_AND [[SELECT]], [[C4]]
; X86-NEXT: [[AND2:%[0-9]+]]:_(s32) = G_AND [[SELECT1]], [[C5]]
; X86-NEXT: [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[AND1]](s32), [[AND2]](s32)
; X86-NEXT: RET 0, implicit [[MV]](s64)
%0(s64) = COPY $rdx
%1:_(s35) = G_TRUNC %0(s64)
%2:_(s35) = G_CTTZ %1
%3:_(s64) = G_ZEXT %2
RET 0, implicit %3
...
---
name: test_cttz8
alignment: 16
legalized: false
regBankSelected: false
registers:
- { id: 0, class: _, preferred-register: '' }
- { id: 1, class: _, preferred-register: '' }
body: |
bb.1:
; CHECK-LABEL: name: test_cttz8
; CHECK: [[DEF:%[0-9]+]]:_(s8) = IMPLICIT_DEF
; CHECK-NEXT: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[DEF]](s8)
; CHECK-NEXT: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 256
; CHECK-NEXT: [[OR:%[0-9]+]]:_(s16) = G_OR [[ANYEXT]], [[C]]
; CHECK-NEXT: [[CTTZ_ZERO_UNDEF:%[0-9]+]]:_(s16) = G_CTTZ_ZERO_UNDEF [[OR]](s16)
; CHECK-NEXT: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[CTTZ_ZERO_UNDEF]](s16)
; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s8) = COPY [[TRUNC]](s8)
; CHECK-NEXT: RET 0, implicit [[COPY]](s8)
%0:_(s8) = IMPLICIT_DEF
%1:_(s8) = G_CTTZ %0
%2:_(s8) = COPY %1(s8)
RET 0, implicit %2
...
---
name: test_cttz64
alignment: 16
legalized: false
regBankSelected: false
registers:
- { id: 0, class: _, preferred-register: '' }
- { id: 1, class: _, preferred-register: '' }
body: |
bb.1:
; X64-LABEL: name: test_cttz64
; X64: [[DEF:%[0-9]+]]:_(s64) = IMPLICIT_DEF
; X64-NEXT: [[CTTZ:%[0-9]+]]:_(s64) = G_CTTZ [[DEF]](s64)
; X64-NEXT: [[COPY:%[0-9]+]]:_(s64) = COPY [[CTTZ]](s64)
; X64-NEXT: RET 0, implicit [[COPY]](s64)
;
; X86-LABEL: name: test_cttz64
; X86: [[DEF:%[0-9]+]]:_(s64) = IMPLICIT_DEF
; X86-NEXT: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[DEF]](s64)
; X86-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
; X86-NEXT: [[ICMP:%[0-9]+]]:_(s8) = G_ICMP intpred(eq), [[UV]](s32), [[C]]
; X86-NEXT: [[CTTZ:%[0-9]+]]:_(s32) = G_CTTZ [[UV1]](s32)
; X86-NEXT: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 32
; X86-NEXT: [[UADDO:%[0-9]+]]:_(s32), [[UADDO1:%[0-9]+]]:_(s1) = G_UADDO [[CTTZ]], [[C1]]
; X86-NEXT: [[UADDE:%[0-9]+]]:_(s32), [[UADDE1:%[0-9]+]]:_(s1) = G_UADDE [[C]], [[C]], [[UADDO1]]
; X86-NEXT: [[CTTZ_ZERO_UNDEF:%[0-9]+]]:_(s32) = G_CTTZ_ZERO_UNDEF [[UV]](s32)
; X86-NEXT: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[ICMP]](s8)
; X86-NEXT: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
; X86-NEXT: [[AND:%[0-9]+]]:_(s32) = G_AND [[ANYEXT]], [[C2]]
; X86-NEXT: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[AND]](s32), [[UADDO]], [[CTTZ_ZERO_UNDEF]]
; X86-NEXT: [[SELECT1:%[0-9]+]]:_(s32) = G_SELECT [[AND]](s32), [[UADDE]], [[C]]
; X86-NEXT: [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[SELECT]](s32), [[SELECT1]](s32)
; X86-NEXT: [[COPY:%[0-9]+]]:_(s64) = COPY [[MV]](s64)
; X86-NEXT: RET 0, implicit [[COPY]](s64)
%0:_(s64) = IMPLICIT_DEF
%1:_(s64) = G_CTTZ %0
%2:_(s64) = COPY %1(s64)
RET 0, implicit %2
...
---
name: test_cttz32
alignment: 16
legalized: false
regBankSelected: false
registers:
- { id: 0, class: _, preferred-register: '' }
- { id: 1, class: _, preferred-register: '' }
body: |
bb.1:
; CHECK-LABEL: name: test_cttz32
; CHECK: [[DEF:%[0-9]+]]:_(s32) = IMPLICIT_DEF
; CHECK-NEXT: [[CTTZ:%[0-9]+]]:_(s32) = G_CTTZ [[DEF]](s32)
; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY [[CTTZ]](s32)
; CHECK-NEXT: RET 0, implicit [[COPY]](s32)
%0:_(s32) = IMPLICIT_DEF
%1:_(s32) = G_CTTZ %0
%2:_(s32) = COPY %1(s32)
RET 0, implicit %2
...
---
name: test_cttz16
alignment: 16
legalized: false
regBankSelected: false
registers:
- { id: 0, class: _, preferred-register: '' }
- { id: 1, class: _, preferred-register: '' }
body: |
bb.1:
; CHECK-LABEL: name: test_cttz16
; CHECK: [[DEF:%[0-9]+]]:_(s16) = IMPLICIT_DEF
; CHECK-NEXT: [[CTTZ:%[0-9]+]]:_(s16) = G_CTTZ [[DEF]](s16)
; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s16) = COPY [[CTTZ]](s16)
; CHECK-NEXT: RET 0, implicit [[COPY]](s16)
%0:_(s16) = IMPLICIT_DEF
%1:_(s16) = G_CTTZ %0
%2:_(s16) = COPY %1(s16)
RET 0, implicit %2
...
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