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|
# RUN: llc -mtriple arm-- -run-pass=legalizer %s -o - | FileCheck %s
# RUN: llc -mtriple thumb-- -mattr=+v6t2 -run-pass=legalizer %s -o - | FileCheck %s
--- |
define void @test_icmp_s8() { ret void }
define void @test_icmp_s16() { ret void }
define void @test_icmp_s32() { ret void }
define void @test_icmp_p0() { ret void }
...
---
name: test_icmp_s8
# CHECK-LABEL: name: test_icmp_s8
legalized: false
# CHECK: legalized: true
regBankSelected: false
selected: false
tracksRegLiveness: true
registers:
- { id: 0, class: _ }
- { id: 1, class: _ }
- { id: 2, class: _ }
- { id: 3, class: _ }
- { id: 4, class: _ }
- { id: 5, class: _ }
body: |
bb.0:
liveins: $r0, $r1
%0(p0) = COPY $r0
%1(s8) = G_LOAD %0 :: (load (s8))
%2(p0) = COPY $r1
%3(s8) = G_LOAD %2 :: (load (s8))
%4(s1) = G_ICMP intpred(ne), %1(s8), %3
; G_ICMP with s8 should widen
; CHECK: {{%[0-9]+}}:_(s1) = G_ICMP intpred(ne), {{%[0-9]+}}(s32), {{%[0-9]+}}
; CHECK-NOT: {{%[0-9]+}}:_(s1) = G_ICMP intpred(ne), {{%[0-9]+}}(s8), {{%[0-9]+}}
%5(s32) = G_ZEXT %4(s1)
$r0 = COPY %5(s32)
BX_RET 14, $noreg, implicit $r0
...
---
name: test_icmp_s16
# CHECK-LABEL: name: test_icmp_s16
legalized: false
# CHECK: legalized: true
regBankSelected: false
selected: false
tracksRegLiveness: true
registers:
- { id: 0, class: _ }
- { id: 1, class: _ }
- { id: 2, class: _ }
- { id: 3, class: _ }
- { id: 4, class: _ }
- { id: 5, class: _ }
body: |
bb.0:
liveins: $r0, $r1
%0(p0) = COPY $r0
%1(s16) = G_LOAD %0 :: (load (s16))
%2(p0) = COPY $r1
%3(s16) = G_LOAD %2 :: (load (s16))
%4(s1) = G_ICMP intpred(slt), %1(s16), %3
; G_ICMP with s16 should widen
; CHECK: {{%[0-9]+}}:_(s1) = G_ICMP intpred(slt), {{%[0-9]+}}(s32), {{%[0-9]+}}
; CHECK-NOT: {{%[0-9]+}}:_(s1) = G_ICMP intpred(slt), {{%[0-9]+}}(s16), {{%[0-9]+}}
%5(s32) = G_ZEXT %4(s1)
$r0 = COPY %5(s32)
BX_RET 14, $noreg, implicit $r0
...
---
name: test_icmp_s32
# CHECK-LABEL: name: test_icmp_s32
legalized: false
# CHECK: legalized: true
regBankSelected: false
selected: false
tracksRegLiveness: true
registers:
- { id: 0, class: _ }
- { id: 1, class: _ }
- { id: 2, class: _ }
- { id: 3, class: _ }
body: |
bb.0:
liveins: $r0, $r1
%0(s32) = COPY $r0
%1(s32) = COPY $r1
%2(s1) = G_ICMP intpred(eq), %0(s32), %1
; G_ICMP with s32 is legal, so we should find it unchanged in the output
; CHECK: {{%[0-9]+}}:_(s1) = G_ICMP intpred(eq), {{%[0-9]+}}(s32), {{%[0-9]+}}
%3(s32) = G_ZEXT %2(s1)
$r0 = COPY %3(s32)
BX_RET 14, $noreg, implicit $r0
...
---
name: test_icmp_p0
# CHECK-LABEL: name: test_icmp_p0
legalized: false
# CHECK: legalized: true
regBankSelected: false
selected: false
tracksRegLiveness: true
registers:
- { id: 0, class: _ }
- { id: 1, class: _ }
- { id: 2, class: _ }
- { id: 3, class: _ }
body: |
bb.0:
liveins: $r0, $r1
%0(p0) = COPY $r0
%1(p0) = COPY $r1
%2(s1) = G_ICMP intpred(eq), %0(p0), %1
; G_ICMP with p0 is legal, so we should find it unchanged in the output
; CHECK: {{%[0-9]+}}:_(s1) = G_ICMP intpred(eq), {{%[0-9]+}}(p0), {{%[0-9]+}}
%3(s32) = G_ZEXT %2(s1)
$r0 = COPY %3(s32)
BX_RET 14, $noreg, implicit $r0
...
|
