forked from OSchip/llvm-project
556 lines
20 KiB
YAML
556 lines
20 KiB
YAML
# RUN: llc -run-pass x86-flags-copy-lowering -verify-machineinstrs -o - %s | FileCheck %s
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#
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# Lower various interesting copy patterns of EFLAGS without using LAHF/SAHF.
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--- |
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target triple = "x86_64-unknown-unknown"
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declare void @foo()
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define i32 @test_branch(i64 %a, i64 %b) {
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entry:
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call void @foo()
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ret i32 0
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}
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define i32 @test_branch_fallthrough(i64 %a, i64 %b) {
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entry:
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call void @foo()
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ret i32 0
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}
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define void @test_setcc(i64 %a, i64 %b) {
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entry:
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call void @foo()
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ret void
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}
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define void @test_cmov(i64 %a, i64 %b) {
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entry:
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call void @foo()
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ret void
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}
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define void @test_adc(i64 %a, i64 %b) {
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entry:
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call void @foo()
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ret void
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}
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define void @test_sbb(i64 %a, i64 %b) {
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entry:
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call void @foo()
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ret void
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}
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define void @test_adcx(i64 %a, i64 %b) {
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entry:
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call void @foo()
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ret void
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}
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define void @test_adox(i64 %a, i64 %b) {
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entry:
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call void @foo()
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ret void
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}
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define void @test_rcl(i64 %a, i64 %b) {
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entry:
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call void @foo()
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ret void
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}
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define void @test_rcr(i64 %a, i64 %b) {
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entry:
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call void @foo()
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ret void
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}
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define void @test_setb_c(i64 %a, i64 %b) {
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entry:
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call void @foo()
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ret void
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}
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...
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---
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name: test_branch
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# CHECK-LABEL: name: test_branch
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liveins:
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- { reg: '$rdi', virtual-reg: '%0' }
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- { reg: '$rsi', virtual-reg: '%1' }
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body: |
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bb.0:
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successors: %bb.1, %bb.2, %bb.3
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liveins: $rdi, $rsi
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%0:gr64 = COPY $rdi
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%1:gr64 = COPY $rsi
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CMP64rr %0, %1, implicit-def $eflags
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%2:gr64 = COPY $eflags
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; CHECK-NOT: COPY{{( killed)?}} $eflags
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; CHECK: %[[A_REG:[^:]*]]:gr8 = SETAr implicit $eflags
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; CHECK-NEXT: %[[B_REG:[^:]*]]:gr8 = SETBr implicit $eflags
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; CHECK-NOT: COPY{{( killed)?}} $eflags
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ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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CALL64pcrel32 @foo, csr_64, implicit $rsp, implicit $ssp, implicit $rdi, implicit-def $rsp, implicit-def $ssp, implicit-def $eax
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ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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$eflags = COPY %2
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JA_1 %bb.1, implicit $eflags
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JB_1 %bb.2, implicit $eflags
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JMP_1 %bb.3
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; CHECK-NOT: $eflags =
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;
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; CHECK: TEST8rr %[[A_REG]], %[[A_REG]], implicit-def $eflags
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; CHECK-NEXT: JNE_1 %bb.1, implicit killed $eflags
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; CHECK-SAME: {{$[[:space:]]}}
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; CHECK-NEXT: bb.4:
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; CHECK-NEXT: successors: {{.*$}}
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; CHECK-SAME: {{$[[:space:]]}}
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; CHECK-NEXT: TEST8rr %[[B_REG]], %[[B_REG]], implicit-def $eflags
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; CHECK-NEXT: JNE_1 %bb.2, implicit killed $eflags
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; CHECK-NEXT: JMP_1 %bb.3
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bb.1:
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%3:gr32 = MOV32ri64 42
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$eax = COPY %3
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RET 0, $eax
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bb.2:
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%4:gr32 = MOV32ri64 43
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$eax = COPY %4
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RET 0, $eax
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bb.3:
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%5:gr32 = MOV32r0 implicit-def dead $eflags
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$eax = COPY %5
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RET 0, $eax
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...
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---
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name: test_branch_fallthrough
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# CHECK-LABEL: name: test_branch_fallthrough
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liveins:
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- { reg: '$rdi', virtual-reg: '%0' }
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- { reg: '$rsi', virtual-reg: '%1' }
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body: |
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bb.0:
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successors: %bb.1, %bb.2, %bb.3
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liveins: $rdi, $rsi
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%0:gr64 = COPY $rdi
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%1:gr64 = COPY $rsi
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CMP64rr %0, %1, implicit-def $eflags
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%2:gr64 = COPY $eflags
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; CHECK-NOT: COPY{{( killed)?}} $eflags
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; CHECK: %[[A_REG:[^:]*]]:gr8 = SETAr implicit $eflags
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; CHECK-NEXT: %[[B_REG:[^:]*]]:gr8 = SETBr implicit $eflags
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; CHECK-NOT: COPY{{( killed)?}} $eflags
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ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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CALL64pcrel32 @foo, csr_64, implicit $rsp, implicit $ssp, implicit $rdi, implicit-def $rsp, implicit-def $ssp, implicit-def $eax
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ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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$eflags = COPY %2
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JA_1 %bb.2, implicit $eflags
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JB_1 %bb.3, implicit $eflags
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; CHECK-NOT: $eflags =
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;
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; CHECK: TEST8rr %[[A_REG]], %[[A_REG]], implicit-def $eflags
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; CHECK-NEXT: JNE_1 %bb.2, implicit killed $eflags
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; CHECK-SAME: {{$[[:space:]]}}
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; CHECK-NEXT: bb.4:
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; CHECK-NEXT: successors: {{.*$}}
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; CHECK-SAME: {{$[[:space:]]}}
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; CHECK-NEXT: TEST8rr %[[B_REG]], %[[B_REG]], implicit-def $eflags
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; CHECK-NEXT: JNE_1 %bb.3, implicit killed $eflags
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; CHECK-SAME: {{$[[:space:]]}}
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; CHECK-NEXT: bb.1:
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bb.1:
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%5:gr32 = MOV32r0 implicit-def dead $eflags
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$eax = COPY %5
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RET 0, $eax
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bb.2:
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%3:gr32 = MOV32ri64 42
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$eax = COPY %3
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RET 0, $eax
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bb.3:
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%4:gr32 = MOV32ri64 43
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$eax = COPY %4
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RET 0, $eax
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...
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---
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name: test_setcc
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# CHECK-LABEL: name: test_setcc
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liveins:
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- { reg: '$rdi', virtual-reg: '%0' }
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- { reg: '$rsi', virtual-reg: '%1' }
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body: |
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bb.0:
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liveins: $rdi, $rsi
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%0:gr64 = COPY $rdi
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%1:gr64 = COPY $rsi
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CMP64rr %0, %1, implicit-def $eflags
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%2:gr64 = COPY $eflags
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; CHECK-NOT: COPY{{( killed)?}} $eflags
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; CHECK: %[[A_REG:[^:]*]]:gr8 = SETAr implicit $eflags
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; CHECK-NEXT: %[[B_REG:[^:]*]]:gr8 = SETBr implicit $eflags
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; CHECK-NEXT: %[[E_REG:[^:]*]]:gr8 = SETEr implicit $eflags
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; CHECK-NEXT: %[[NE_REG:[^:]*]]:gr8 = SETNEr implicit $eflags
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; CHECK-NOT: COPY{{( killed)?}} $eflags
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ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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CALL64pcrel32 @foo, csr_64, implicit $rsp, implicit $ssp, implicit $rdi, implicit-def $rsp, implicit-def $ssp, implicit-def $eax
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ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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$eflags = COPY %2
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%3:gr8 = SETAr implicit $eflags
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%4:gr8 = SETBr implicit $eflags
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%5:gr8 = SETEr implicit $eflags
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SETNEm $rsp, 1, $noreg, -16, $noreg, implicit killed $eflags
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MOV8mr $rsp, 1, $noreg, -16, $noreg, killed %3
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MOV8mr $rsp, 1, $noreg, -16, $noreg, killed %4
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MOV8mr $rsp, 1, $noreg, -16, $noreg, killed %5
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; CHECK-NOT: $eflags =
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; CHECK-NOT: = SET{{.*}}
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; CHECK: MOV8mr {{.*}}, killed %[[A_REG]]
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; CHECK-CHECK: MOV8mr {{.*}}, killed %[[B_REG]]
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; CHECK-CHECK: MOV8mr {{.*}}, killed %[[E_REG]]
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; CHECK-CHECK: MOV8mr {{.*}}, killed %[[NE_REG]]
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RET 0
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...
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---
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name: test_cmov
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# CHECK-LABEL: name: test_cmov
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liveins:
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- { reg: '$rdi', virtual-reg: '%0' }
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- { reg: '$rsi', virtual-reg: '%1' }
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body: |
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bb.0:
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liveins: $rdi, $rsi
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%0:gr64 = COPY $rdi
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%1:gr64 = COPY $rsi
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CMP64rr %0, %1, implicit-def $eflags
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%2:gr64 = COPY $eflags
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; CHECK-NOT: COPY{{( killed)?}} $eflags
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; CHECK: %[[A_REG:[^:]*]]:gr8 = SETAr implicit $eflags
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; CHECK-NEXT: %[[B_REG:[^:]*]]:gr8 = SETBr implicit $eflags
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; CHECK-NEXT: %[[E_REG:[^:]*]]:gr8 = SETEr implicit $eflags
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; CHECK-NOT: COPY{{( killed)?}} $eflags
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ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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CALL64pcrel32 @foo, csr_64, implicit $rsp, implicit $ssp, implicit $rdi, implicit-def $rsp, implicit-def $ssp, implicit-def $eax
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ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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$eflags = COPY %2
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%3:gr64 = CMOVA64rr %0, %1, implicit $eflags
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%4:gr64 = CMOVB64rr %0, %1, implicit $eflags
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%5:gr64 = CMOVE64rr %0, %1, implicit $eflags
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%6:gr64 = CMOVNE64rr %0, %1, implicit killed $eflags
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; CHECK-NOT: $eflags =
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; CHECK: TEST8rr %[[A_REG]], %[[A_REG]], implicit-def $eflags
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; CHECK-NEXT: %3:gr64 = CMOVNE64rr %0, %1, implicit killed $eflags
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; CHECK-NEXT: TEST8rr %[[B_REG]], %[[B_REG]], implicit-def $eflags
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; CHECK-NEXT: %4:gr64 = CMOVNE64rr %0, %1, implicit killed $eflags
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; CHECK-NEXT: TEST8rr %[[E_REG]], %[[E_REG]], implicit-def $eflags
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; CHECK-NEXT: %5:gr64 = CMOVNE64rr %0, %1, implicit killed $eflags
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; CHECK-NEXT: TEST8rr %[[E_REG]], %[[E_REG]], implicit-def $eflags
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; CHECK-NEXT: %6:gr64 = CMOVE64rr %0, %1, implicit killed $eflags
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MOV64mr $rsp, 1, $noreg, -16, $noreg, killed %3
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MOV64mr $rsp, 1, $noreg, -16, $noreg, killed %4
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MOV64mr $rsp, 1, $noreg, -16, $noreg, killed %5
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MOV64mr $rsp, 1, $noreg, -16, $noreg, killed %6
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RET 0
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...
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---
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name: test_adc
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# CHECK-LABEL: name: test_adc
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liveins:
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- { reg: '$rdi', virtual-reg: '%0' }
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- { reg: '$rsi', virtual-reg: '%1' }
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body: |
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bb.0:
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liveins: $rdi, $rsi
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%0:gr64 = COPY $rdi
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%1:gr64 = COPY $rsi
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%2:gr64 = ADD64rr %0, %1, implicit-def $eflags
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%3:gr64 = COPY $eflags
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; CHECK-NOT: COPY{{( killed)?}} $eflags
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; CHECK: %[[CF_REG:[^:]*]]:gr8 = SETBr implicit $eflags
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; CHECK-NOT: COPY{{( killed)?}} $eflags
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ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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CALL64pcrel32 @foo, csr_64, implicit $rsp, implicit $ssp, implicit $rdi, implicit-def $rsp, implicit-def $ssp, implicit-def $eax
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ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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$eflags = COPY %3
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%4:gr64 = ADC64ri32 %2:gr64, 42, implicit-def $eflags, implicit $eflags
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%5:gr64 = ADC64ri32 %4:gr64, 42, implicit-def $eflags, implicit $eflags
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; CHECK-NOT: $eflags =
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; CHECK: dead %{{[^:]*}}:gr8 = ADD8ri %[[CF_REG]], 255, implicit-def $eflags
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; CHECK-NEXT: %4:gr64 = ADC64ri32 %2, 42, implicit-def $eflags, implicit killed $eflags
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; CHECK-NEXT: %5:gr64 = ADC64ri32 %4, 42, implicit-def{{( dead)?}} $eflags, implicit{{( killed)?}} $eflags
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MOV64mr $rsp, 1, $noreg, -16, $noreg, killed %5
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RET 0
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...
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---
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name: test_sbb
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# CHECK-LABEL: name: test_sbb
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liveins:
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- { reg: '$rdi', virtual-reg: '%0' }
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- { reg: '$rsi', virtual-reg: '%1' }
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body: |
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bb.0:
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liveins: $rdi, $rsi
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%0:gr64 = COPY $rdi
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%1:gr64 = COPY $rsi
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%2:gr64 = SUB64rr %0, %1, implicit-def $eflags
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%3:gr64 = COPY killed $eflags
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; CHECK-NOT: COPY{{( killed)?}} $eflags
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; CHECK: %[[CF_REG:[^:]*]]:gr8 = SETBr implicit $eflags
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; CHECK-NOT: COPY{{( killed)?}} $eflags
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ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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CALL64pcrel32 @foo, csr_64, implicit $rsp, implicit $ssp, implicit $rdi, implicit-def $rsp, implicit-def $ssp, implicit-def $eax
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ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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$eflags = COPY %3
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%4:gr64 = SBB64ri32 %2:gr64, 42, implicit-def $eflags, implicit killed $eflags
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%5:gr64 = SBB64ri32 %4:gr64, 42, implicit-def dead $eflags, implicit killed $eflags
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; CHECK-NOT: $eflags =
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; CHECK: dead %{{[^:]*}}:gr8 = ADD8ri %[[CF_REG]], 255, implicit-def $eflags
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; CHECK-NEXT: %4:gr64 = SBB64ri32 %2, 42, implicit-def $eflags, implicit killed $eflags
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; CHECK-NEXT: %5:gr64 = SBB64ri32 %4, 42, implicit-def{{( dead)?}} $eflags, implicit{{( killed)?}} $eflags
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MOV64mr $rsp, 1, $noreg, -16, $noreg, killed %5
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RET 0
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...
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---
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name: test_adcx
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# CHECK-LABEL: name: test_adcx
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liveins:
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- { reg: '$rdi', virtual-reg: '%0' }
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- { reg: '$rsi', virtual-reg: '%1' }
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body: |
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bb.0:
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liveins: $rdi, $rsi
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%0:gr64 = COPY $rdi
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%1:gr64 = COPY $rsi
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%2:gr64 = ADD64rr %0, %1, implicit-def $eflags
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%3:gr64 = COPY $eflags
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; CHECK-NOT: COPY{{( killed)?}} $eflags
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; CHECK: %[[E_REG:[^:]*]]:gr8 = SETEr implicit $eflags
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; CHECK-NEXT: %[[CF_REG:[^:]*]]:gr8 = SETBr implicit $eflags
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; CHECK-NOT: COPY{{( killed)?}} $eflags
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ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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CALL64pcrel32 @foo, csr_64, implicit $rsp, implicit $ssp, implicit $rdi, implicit-def $rsp, implicit-def $ssp, implicit-def $eax
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ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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$eflags = COPY %3
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%4:gr64 = CMOVE64rr %0, %1, implicit $eflags
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%5:gr64 = MOV64ri32 42
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%6:gr64 = ADCX64rr %2, %5, implicit-def $eflags, implicit $eflags
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; CHECK-NOT: $eflags =
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; CHECK: TEST8rr %[[E_REG]], %[[E_REG]], implicit-def $eflags
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; CHECK-NEXT: %4:gr64 = CMOVNE64rr %0, %1, implicit killed $eflags
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; CHECK-NEXT: %5:gr64 = MOV64ri32 42
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; CHECK-NEXT: dead %{{[^:]*}}:gr8 = ADD8ri %[[CF_REG]], 255, implicit-def $eflags
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; CHECK-NEXT: %6:gr64 = ADCX64rr %2, %5, implicit-def{{( dead)?}} $eflags, implicit killed $eflags
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MOV64mr $rsp, 1, $noreg, -16, $noreg, killed %4
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MOV64mr $rsp, 1, $noreg, -16, $noreg, killed %6
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RET 0
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...
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---
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name: test_adox
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# CHECK-LABEL: name: test_adox
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liveins:
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- { reg: '$rdi', virtual-reg: '%0' }
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- { reg: '$rsi', virtual-reg: '%1' }
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body: |
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bb.0:
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liveins: $rdi, $rsi
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%0:gr64 = COPY $rdi
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%1:gr64 = COPY $rsi
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%2:gr64 = ADD64rr %0, %1, implicit-def $eflags
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%3:gr64 = COPY $eflags
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; CHECK-NOT: COPY{{( killed)?}} $eflags
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; CHECK: %[[E_REG:[^:]*]]:gr8 = SETEr implicit $eflags
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; CHECK-NEXT: %[[OF_REG:[^:]*]]:gr8 = SETOr implicit $eflags
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; CHECK-NOT: COPY{{( killed)?}} $eflags
|
|
|
|
ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
|
|
CALL64pcrel32 @foo, csr_64, implicit $rsp, implicit $ssp, implicit $rdi, implicit-def $rsp, implicit-def $ssp, implicit-def $eax
|
|
ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
|
|
|
|
$eflags = COPY %3
|
|
%4:gr64 = CMOVE64rr %0, %1, implicit $eflags
|
|
%5:gr64 = MOV64ri32 42
|
|
%6:gr64 = ADOX64rr %2, %5, implicit-def $eflags, implicit $eflags
|
|
; CHECK-NOT: $eflags =
|
|
; CHECK: TEST8rr %[[E_REG]], %[[E_REG]], implicit-def $eflags
|
|
; CHECK-NEXT: %4:gr64 = CMOVNE64rr %0, %1, implicit killed $eflags
|
|
; CHECK-NEXT: %5:gr64 = MOV64ri32 42
|
|
; CHECK-NEXT: dead %{{[^:]*}}:gr8 = ADD8ri %[[OF_REG]], 127, implicit-def $eflags
|
|
; CHECK-NEXT: %6:gr64 = ADOX64rr %2, %5, implicit-def{{( dead)?}} $eflags, implicit killed $eflags
|
|
MOV64mr $rsp, 1, $noreg, -16, $noreg, killed %4
|
|
MOV64mr $rsp, 1, $noreg, -16, $noreg, killed %6
|
|
|
|
RET 0
|
|
|
|
...
|
|
---
|
|
name: test_rcl
|
|
# CHECK-LABEL: name: test_rcl
|
|
liveins:
|
|
- { reg: '$rdi', virtual-reg: '%0' }
|
|
- { reg: '$rsi', virtual-reg: '%1' }
|
|
body: |
|
|
bb.0:
|
|
liveins: $rdi, $rsi
|
|
|
|
%0:gr64 = COPY $rdi
|
|
%1:gr64 = COPY $rsi
|
|
%2:gr64 = ADD64rr %0, %1, implicit-def $eflags
|
|
%3:gr64 = COPY $eflags
|
|
; CHECK-NOT: COPY{{( killed)?}} $eflags
|
|
; CHECK: %[[CF_REG:[^:]*]]:gr8 = SETBr implicit $eflags
|
|
; CHECK-NOT: COPY{{( killed)?}} $eflags
|
|
|
|
ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
|
|
CALL64pcrel32 @foo, csr_64, implicit $rsp, implicit $ssp, implicit $rdi, implicit-def $rsp, implicit-def $ssp, implicit-def $eax
|
|
ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
|
|
|
|
$eflags = COPY %3
|
|
%4:gr64 = RCL64r1 %2:gr64, implicit-def $eflags, implicit $eflags
|
|
%5:gr64 = RCL64r1 %4:gr64, implicit-def $eflags, implicit $eflags
|
|
; CHECK-NOT: $eflags =
|
|
; CHECK: dead %{{[^:]*}}:gr8 = ADD8ri %[[CF_REG]], 255, implicit-def $eflags
|
|
; CHECK-NEXT: %4:gr64 = RCL64r1 %2, implicit-def $eflags, implicit killed $eflags
|
|
; CHECK-NEXT: %5:gr64 = RCL64r1 %4, implicit-def{{( dead)?}} $eflags, implicit{{( killed)?}} $eflags
|
|
MOV64mr $rsp, 1, $noreg, -16, $noreg, killed %5
|
|
|
|
RET 0
|
|
|
|
...
|
|
---
|
|
name: test_rcr
|
|
# CHECK-LABEL: name: test_rcr
|
|
liveins:
|
|
- { reg: '$rdi', virtual-reg: '%0' }
|
|
- { reg: '$rsi', virtual-reg: '%1' }
|
|
body: |
|
|
bb.0:
|
|
liveins: $rdi, $rsi
|
|
|
|
%0:gr64 = COPY $rdi
|
|
%1:gr64 = COPY $rsi
|
|
%2:gr64 = ADD64rr %0, %1, implicit-def $eflags
|
|
%3:gr64 = COPY $eflags
|
|
; CHECK-NOT: COPY{{( killed)?}} $eflags
|
|
; CHECK: %[[CF_REG:[^:]*]]:gr8 = SETBr implicit $eflags
|
|
; CHECK-NOT: COPY{{( killed)?}} $eflags
|
|
|
|
ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
|
|
CALL64pcrel32 @foo, csr_64, implicit $rsp, implicit $ssp, implicit $rdi, implicit-def $rsp, implicit-def $ssp, implicit-def $eax
|
|
ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
|
|
|
|
$eflags = COPY %3
|
|
%4:gr64 = RCR64r1 %2:gr64, implicit-def $eflags, implicit $eflags
|
|
%5:gr64 = RCR64r1 %4:gr64, implicit-def $eflags, implicit $eflags
|
|
; CHECK-NOT: $eflags =
|
|
; CHECK: dead %{{[^:]*}}:gr8 = ADD8ri %[[CF_REG]], 255, implicit-def $eflags
|
|
; CHECK-NEXT: %4:gr64 = RCR64r1 %2, implicit-def $eflags, implicit killed $eflags
|
|
; CHECK-NEXT: %5:gr64 = RCR64r1 %4, implicit-def{{( dead)?}} $eflags, implicit{{( killed)?}} $eflags
|
|
MOV64mr $rsp, 1, $noreg, -16, $noreg, killed %5
|
|
|
|
RET 0
|
|
|
|
...
|
|
---
|
|
name: test_setb_c
|
|
# CHECK-LABEL: name: test_setb_c
|
|
liveins:
|
|
- { reg: '$rdi', virtual-reg: '%0' }
|
|
- { reg: '$rsi', virtual-reg: '%1' }
|
|
body: |
|
|
bb.0:
|
|
liveins: $rdi, $rsi
|
|
|
|
%0:gr64 = COPY $rdi
|
|
%1:gr64 = COPY $rsi
|
|
%2:gr64 = ADD64rr %0, %1, implicit-def $eflags
|
|
%3:gr64 = COPY $eflags
|
|
; CHECK-NOT: COPY{{( killed)?}} $eflags
|
|
; CHECK: %[[CF_REG:[^:]*]]:gr8 = SETBr implicit $eflags
|
|
; CHECK-NOT: COPY{{( killed)?}} $eflags
|
|
|
|
ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
|
|
CALL64pcrel32 @foo, csr_64, implicit $rsp, implicit $ssp, implicit $rdi, implicit-def $rsp, implicit-def $ssp, implicit-def $eax
|
|
ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
|
|
|
|
$eflags = COPY %3
|
|
%4:gr8 = SETB_C8r implicit-def $eflags, implicit $eflags
|
|
MOV8mr $rsp, 1, $noreg, -16, $noreg, killed %4
|
|
; CHECK-NOT: $eflags =
|
|
; CHECK: %[[ZERO:[^:]*]]:gr32 = MOV32r0 implicit-def $eflags
|
|
; CHECK-NEXT: %[[ZERO_SUBREG:[^:]*]]:gr8 = EXTRACT_SUBREG %[[ZERO]], %subreg.sub_8bit
|
|
; CHECK-NEXT: %[[REPLACEMENT:[^:]*]]:gr8 = SUB8rr %[[ZERO_SUBREG]], %[[CF_REG]]
|
|
; CHECK-NEXT: MOV8mr $rsp, 1, $noreg, -16, $noreg, killed %[[REPLACEMENT]]
|
|
|
|
$eflags = COPY %3
|
|
%5:gr16 = SETB_C16r implicit-def $eflags, implicit $eflags
|
|
MOV16mr $rsp, 1, $noreg, -16, $noreg, killed %5
|
|
; CHECK-NOT: $eflags =
|
|
; CHECK: %[[CF_EXT:[^:]*]]:gr32 = MOVZX32rr8 %[[CF_REG]]
|
|
; CHECK-NEXT: %[[CF_TRUNC:[^:]*]]:gr16 = EXTRACT_SUBREG %[[CF_EXT]], %subreg.sub_16bit
|
|
; CHECK-NEXT: %[[ZERO:[^:]*]]:gr32 = MOV32r0 implicit-def $eflags
|
|
; CHECK-NEXT: %[[ZERO_SUBREG:[^:]*]]:gr16 = EXTRACT_SUBREG %[[ZERO]], %subreg.sub_16bit
|
|
; CHECK-NEXT: %[[REPLACEMENT:[^:]*]]:gr16 = SUB16rr %[[ZERO_SUBREG]], %[[CF_TRUNC]]
|
|
; CHECK-NEXT: MOV16mr $rsp, 1, $noreg, -16, $noreg, killed %[[REPLACEMENT]]
|
|
|
|
$eflags = COPY %3
|
|
%6:gr32 = SETB_C32r implicit-def $eflags, implicit $eflags
|
|
MOV32mr $rsp, 1, $noreg, -16, $noreg, killed %6
|
|
; CHECK-NOT: $eflags =
|
|
; CHECK: %[[CF_EXT:[^:]*]]:gr32 = MOVZX32rr8 %[[CF_REG]]
|
|
; CHECK-NEXT: %[[ZERO:[^:]*]]:gr32 = MOV32r0 implicit-def $eflags
|
|
; CHECK-NEXT: %[[REPLACEMENT:[^:]*]]:gr32 = SUB32rr %[[ZERO]], %[[CF_EXT]]
|
|
; CHECK-NEXT: MOV32mr $rsp, 1, $noreg, -16, $noreg, killed %[[REPLACEMENT]]
|
|
|
|
$eflags = COPY %3
|
|
%7:gr64 = SETB_C64r implicit-def $eflags, implicit $eflags
|
|
MOV64mr $rsp, 1, $noreg, -16, $noreg, killed %7
|
|
; CHECK-NOT: $eflags =
|
|
; CHECK: %[[CF_EXT1:[^:]*]]:gr32 = MOVZX32rr8 %[[CF_REG]]
|
|
; CHECK-NEXT: %[[CF_EXT2:[^:]*]]:gr64 = SUBREG_TO_REG 0, %[[CF_EXT1]], %subreg.sub_32bit
|
|
; CHECK-NEXT: %[[ZERO:[^:]*]]:gr32 = MOV32r0 implicit-def $eflags
|
|
; CHECK-NEXT: %[[ZERO_EXT:[^:]*]]:gr64 = SUBREG_TO_REG 0, %[[ZERO]], %subreg.sub_32bit
|
|
; CHECK-NEXT: %[[REPLACEMENT:[^:]*]]:gr64 = SUB64rr %[[ZERO_EXT]], %[[CF_EXT2]]
|
|
; CHECK-NEXT: MOV64mr $rsp, 1, $noreg, -16, $noreg, killed %[[REPLACEMENT]]
|
|
|
|
RET 0
|
|
|
|
...
|