c3cfbbc416
Checks for implicit defs that are unused within a pattern and mark them as dead. This is done directly at the TableGen level forr efficiency. The instructions are directly created with the "dead" operand and no further analysis is needed later. Reviewed By: arsenm Differential Revision: https://reviews.llvm.org/D157273
105 lines
2.8 KiB
YAML
105 lines
2.8 KiB
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
|
|
# RUN: llc -mtriple=x86_64-linux-gnu -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s --check-prefix=ALL
|
|
|
|
--- |
|
|
define i16 @test_mul_i16(i16 %arg1, i16 %arg2) {
|
|
%ret = mul i16 %arg1, %arg2
|
|
ret i16 %ret
|
|
}
|
|
|
|
define i32 @test_mul_i32(i32 %arg1, i32 %arg2) {
|
|
%ret = mul i32 %arg1, %arg2
|
|
ret i32 %ret
|
|
}
|
|
|
|
define i64 @test_mul_i64(i64 %arg1, i64 %arg2) {
|
|
%ret = mul i64 %arg1, %arg2
|
|
ret i64 %ret
|
|
}
|
|
|
|
...
|
|
---
|
|
name: test_mul_i16
|
|
alignment: 16
|
|
legalized: true
|
|
regBankSelected: true
|
|
registers:
|
|
- { id: 0, class: gpr }
|
|
- { id: 1, class: gpr }
|
|
- { id: 2, class: gpr }
|
|
body: |
|
|
bb.1 (%ir-block.0):
|
|
liveins: $edi, $esi
|
|
|
|
; ALL-LABEL: name: test_mul_i16
|
|
; ALL: liveins: $edi, $esi
|
|
; ALL-NEXT: {{ $}}
|
|
; ALL-NEXT: [[COPY:%[0-9]+]]:gr16 = COPY $di
|
|
; ALL-NEXT: [[COPY1:%[0-9]+]]:gr16 = COPY $si
|
|
; ALL-NEXT: [[IMUL16rr:%[0-9]+]]:gr16 = IMUL16rr [[COPY]], [[COPY1]], implicit-def dead $eflags
|
|
; ALL-NEXT: $ax = COPY [[IMUL16rr]]
|
|
; ALL-NEXT: RET 0, implicit $ax
|
|
%0(s16) = COPY $di
|
|
%1(s16) = COPY $si
|
|
%2(s16) = G_MUL %0, %1
|
|
$ax = COPY %2(s16)
|
|
RET 0, implicit $ax
|
|
|
|
...
|
|
---
|
|
name: test_mul_i32
|
|
alignment: 16
|
|
legalized: true
|
|
regBankSelected: true
|
|
registers:
|
|
- { id: 0, class: gpr }
|
|
- { id: 1, class: gpr }
|
|
- { id: 2, class: gpr }
|
|
body: |
|
|
bb.1 (%ir-block.0):
|
|
liveins: $edi, $esi
|
|
|
|
; ALL-LABEL: name: test_mul_i32
|
|
; ALL: liveins: $edi, $esi
|
|
; ALL-NEXT: {{ $}}
|
|
; ALL-NEXT: [[COPY:%[0-9]+]]:gr32 = COPY $edi
|
|
; ALL-NEXT: [[COPY1:%[0-9]+]]:gr32 = COPY $esi
|
|
; ALL-NEXT: [[IMUL32rr:%[0-9]+]]:gr32 = IMUL32rr [[COPY]], [[COPY1]], implicit-def dead $eflags
|
|
; ALL-NEXT: $eax = COPY [[IMUL32rr]]
|
|
; ALL-NEXT: RET 0, implicit $eax
|
|
%0(s32) = COPY $edi
|
|
%1(s32) = COPY $esi
|
|
%2(s32) = G_MUL %0, %1
|
|
$eax = COPY %2(s32)
|
|
RET 0, implicit $eax
|
|
|
|
...
|
|
---
|
|
name: test_mul_i64
|
|
alignment: 16
|
|
legalized: true
|
|
regBankSelected: true
|
|
registers:
|
|
- { id: 0, class: gpr }
|
|
- { id: 1, class: gpr }
|
|
- { id: 2, class: gpr }
|
|
body: |
|
|
bb.1 (%ir-block.0):
|
|
liveins: $rdi, $rsi
|
|
|
|
; ALL-LABEL: name: test_mul_i64
|
|
; ALL: liveins: $rdi, $rsi
|
|
; ALL-NEXT: {{ $}}
|
|
; ALL-NEXT: [[COPY:%[0-9]+]]:gr64 = COPY $rdi
|
|
; ALL-NEXT: [[COPY1:%[0-9]+]]:gr64 = COPY $rsi
|
|
; ALL-NEXT: [[IMUL64rr:%[0-9]+]]:gr64 = IMUL64rr [[COPY]], [[COPY1]], implicit-def dead $eflags
|
|
; ALL-NEXT: $rax = COPY [[IMUL64rr]]
|
|
; ALL-NEXT: RET 0, implicit $rax
|
|
%0(s64) = COPY $rdi
|
|
%1(s64) = COPY $rsi
|
|
%2(s64) = G_MUL %0, %1
|
|
$rax = COPY %2(s64)
|
|
RET 0, implicit $rax
|
|
|
|
...
|