forked from OSchip/llvm-project
71 lines
2.9 KiB
LLVM
71 lines
2.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -loop-unroll -S %s | FileCheck %s
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; Check that the loop body containing callbr is correctly unrolled.
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define dso_local void @d() {
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; CHECK-LABEL: @d(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[FOR_BODY:%.*]]
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; CHECK: for.body:
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; CHECK-NEXT: br i1 true, label [[FOR_INC:%.*]], label [[IF_THEN:%.*]]
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; CHECK: if.then:
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; CHECK-NEXT: callbr void asm sideeffect "1: nop\0A\09.quad b, ${0:l}, $$5\0A\09", "!i,~{dirflag},~{fpsr},~{flags}"()
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; CHECK-NEXT: to label [[ASM_FALLTHROUGH:%.*]] [label %l_yes]
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; CHECK: asm.fallthrough:
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; CHECK-NEXT: br label [[L_YES:%.*]]
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; CHECK: l_yes:
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; CHECK-NEXT: [[CALL:%.*]] = tail call i32 (...) @g()
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; CHECK-NEXT: br label [[FOR_INC]]
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; CHECK: for.inc:
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; CHECK-NEXT: br i1 false, label [[FOR_INC_1:%.*]], label [[IF_THEN_1:%.*]]
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; CHECK: if.then.1:
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; CHECK-NEXT: callbr void asm sideeffect "1: nop\0A\09.quad b, ${0:l}, $$5\0A\09", "!i,~{dirflag},~{fpsr},~{flags}"()
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; CHECK-NEXT: to label [[ASM_FALLTHROUGH_1:%.*]] [label %l_yes.1]
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; CHECK: asm.fallthrough.1:
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; CHECK-NEXT: br label [[L_YES_1:%.*]]
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; CHECK: l_yes.1:
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; CHECK-NEXT: [[CALL_1:%.*]] = tail call i32 (...) @g()
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; CHECK-NEXT: br label [[FOR_INC_1]]
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; CHECK: for.inc.1:
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; CHECK-NEXT: br i1 false, label [[FOR_INC_2:%.*]], label [[IF_THEN_2:%.*]]
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; CHECK: if.then.2:
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; CHECK-NEXT: callbr void asm sideeffect "1: nop\0A\09.quad b, ${0:l}, $$5\0A\09", "!i,~{dirflag},~{fpsr},~{flags}"()
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; CHECK-NEXT: to label [[ASM_FALLTHROUGH_2:%.*]] [label %l_yes.2]
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; CHECK: asm.fallthrough.2:
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; CHECK-NEXT: br label [[L_YES_2:%.*]]
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; CHECK: l_yes.2:
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; CHECK-NEXT: [[CALL_2:%.*]] = tail call i32 (...) @g()
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; CHECK-NEXT: br label [[FOR_INC_2]]
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; CHECK: for.inc.2:
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; CHECK-NEXT: ret void
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;
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entry:
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br label %for.body
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for.cond.cleanup: ; preds = %for.inc
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ret void
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for.body: ; preds = %for.inc, %entry
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%e.04 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
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%tobool = icmp eq i32 %e.04, 0
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br i1 %tobool, label %for.inc, label %if.then
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if.then: ; preds = %for.body
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callbr void asm sideeffect "1: nop\0A\09.quad b, ${0:l}, $$5\0A\09", "!i,~{dirflag},~{fpsr},~{flags}"()
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to label %asm.fallthrough [label %l_yes]
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asm.fallthrough: ; preds = %if.then
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br label %l_yes
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l_yes: ; preds = %asm.fallthrough, %if.then
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%call = tail call i32 (...) @g()
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br label %for.inc
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for.inc: ; preds = %for.body, %l_yes
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%inc = add nuw nsw i32 %e.04, 1
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%exitcond = icmp eq i32 %inc, 3
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br i1 %exitcond, label %for.cond.cleanup, label %for.body
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}
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declare dso_local i32 @g(...) local_unnamed_addr
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