derek.holloway
7502bf64a4
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123 lines
6.3 KiB
LLVM
123 lines
6.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 5
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; Make sure MIR generated for conditional branch with unpredictable metadata has unpredictable flag.
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; RUN: llc -mtriple=x86_64-unknown-linux-gnu -stop-after=finalize-isel < %s | FileCheck %s
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define void @cond_branch_1(i1 %cond) {
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; CHECK-LABEL: name: cond_branch_1
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; CHECK: bb.0.entry:
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; CHECK-NEXT: successors: %bb.1(0x40000000), %bb.2(0x40000000)
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; CHECK-NEXT: liveins: $edi
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:gr32 = COPY $edi
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:gr8 = COPY [[COPY]].sub_8bit
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; CHECK-NEXT: TEST8ri killed [[COPY1]], 1, implicit-def $eflags
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; CHECK-NEXT: unpredictable JCC_1 %bb.2, 4, implicit $eflags
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; CHECK-NEXT: JMP_1 %bb.1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.1.then:
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; CHECK-NEXT: ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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; CHECK-NEXT: CALL64pcrel32 target-flags(x86-plt) @f1, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp
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; CHECK-NEXT: ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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; CHECK-NEXT: RET 0
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.2.else:
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; CHECK-NEXT: ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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; CHECK-NEXT: CALL64pcrel32 target-flags(x86-plt) @f2, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp
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; CHECK-NEXT: ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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; CHECK-NEXT: RET 0
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entry:
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br i1 %cond, label %then, label %else, !unpredictable !0
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then:
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call void @f1()
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ret void
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else:
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call void @f2()
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ret void
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}
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define void @cond_branch_2(double %a, double %b, i32 %c, i32 %d) nounwind {
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; CHECK-LABEL: name: cond_branch_2
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; CHECK: bb.0 (%ir-block.0):
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; CHECK-NEXT: successors: %bb.1(0x40000000), %bb.2(0x40000000)
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; CHECK-NEXT: liveins: $xmm0, $xmm1, $edi, $esi
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:gr32 = COPY $esi
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:gr32 = COPY $edi
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; CHECK-NEXT: [[COPY2:%[0-9]+]]:fr64 = COPY $xmm1
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; CHECK-NEXT: [[COPY3:%[0-9]+]]:fr64 = COPY $xmm0
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; CHECK-NEXT: nofpexcept UCOMISDrr [[COPY2]], [[COPY3]], implicit-def $eflags, implicit $mxcsr
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; CHECK-NEXT: [[SETCCr:%[0-9]+]]:gr8 = SETCCr 3, implicit $eflags
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; CHECK-NEXT: [[SUB32rr:%[0-9]+]]:gr32 = SUB32rr [[COPY1]], [[COPY]], implicit-def $eflags
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; CHECK-NEXT: [[SETCCr1:%[0-9]+]]:gr8 = SETCCr 6, implicit $eflags
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; CHECK-NEXT: [[OR8rr:%[0-9]+]]:gr8 = OR8rr [[SETCCr]], killed [[SETCCr1]], implicit-def dead $eflags
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; CHECK-NEXT: TEST8rr [[OR8rr]], [[OR8rr]], implicit-def $eflags
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; CHECK-NEXT: unpredictable JCC_1 %bb.2, 5, implicit $eflags
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; CHECK-NEXT: JMP_1 %bb.1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.1.true:
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; CHECK-NEXT: ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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; CHECK-NEXT: CALL64pcrel32 target-flags(x86-plt) @f1, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp
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; CHECK-NEXT: ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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; CHECK-NEXT: RET 0
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.2.false:
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; CHECK-NEXT: ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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; CHECK-NEXT: CALL64pcrel32 target-flags(x86-plt) @f2, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp
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; CHECK-NEXT: ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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; CHECK-NEXT: RET 0
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%cond1 = fcmp ugt double %a, %b
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%cond2 = icmp ugt i32 %c, %d
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%cond = and i1 %cond1, %cond2
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br i1 %cond, label %true, label %false, !unpredictable !0
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true:
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call void @f1()
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ret void
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false:
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call void @f2()
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ret void
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}
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define void @isint_branch(double %d) nounwind {
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; CHECK-LABEL: name: isint_branch
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; CHECK: bb.0 (%ir-block.0):
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; CHECK-NEXT: successors: %bb.1(0x50000000), %bb.2(0x30000000)
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; CHECK-NEXT: liveins: $xmm0
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:fr64 = COPY $xmm0
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:vr128 = COPY [[COPY]]
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; CHECK-NEXT: [[CVTTPD2DQrr:%[0-9]+]]:vr128 = nofpexcept CVTTPD2DQrr killed [[COPY1]], implicit $mxcsr
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; CHECK-NEXT: [[CVTDQ2PDrr:%[0-9]+]]:vr128 = CVTDQ2PDrr killed [[CVTTPD2DQrr]]
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; CHECK-NEXT: [[COPY2:%[0-9]+]]:fr64 = COPY killed [[CVTDQ2PDrr]]
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; CHECK-NEXT: nofpexcept UCOMISDrr [[COPY]], killed [[COPY2]], implicit-def $eflags, implicit $mxcsr
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; CHECK-NEXT: unpredictable JCC_1 %bb.2, 5, implicit $eflags
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; CHECK-NEXT: unpredictable JCC_1 %bb.2, 10, implicit $eflags
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; CHECK-NEXT: JMP_1 %bb.1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.1.true:
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; CHECK-NEXT: ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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; CHECK-NEXT: CALL64pcrel32 target-flags(x86-plt) @f1, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp
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; CHECK-NEXT: ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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; CHECK-NEXT: RET 0
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.2.false:
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; CHECK-NEXT: ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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; CHECK-NEXT: CALL64pcrel32 target-flags(x86-plt) @f2, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp
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; CHECK-NEXT: ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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; CHECK-NEXT: RET 0
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%i = fptosi double %d to i32
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%e = sitofp i32 %i to double
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%c = fcmp oeq double %d, %e
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br i1 %c, label %true, label %false, !unpredictable !0
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true:
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call void @f1()
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ret void
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false:
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call void @f2()
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ret void
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}
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declare void @f1()
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declare void @f2()
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!0 = !{}
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