183 lines
5.2 KiB
LLVM
183 lines
5.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -jump-threading -S < %s | FileCheck %s
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declare void @f()
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define void @test1(i1 %cond, i1 %dummycond) {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: br i1 [[COND:%.*]], label [[A:%.*]], label [[B:%.*]]
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; CHECK: A:
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; CHECK-NEXT: br i1 [[DUMMYCOND:%.*]], label [[REACHABLE:%.*]], label [[DUMMY:%.*]]
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; CHECK: B:
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; CHECK-NEXT: br i1 [[DUMMYCOND]], label [[REACHABLE]], label [[DUMMY]]
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; CHECK: REACHABLE:
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; CHECK-NEXT: call void @f()
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; CHECK-NEXT: ret void
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; CHECK: DUMMY:
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; CHECK-NEXT: ret void
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;
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br i1 %cond, label %A, label %B
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A:
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br i1 %dummycond, label %A2, label %DUMMY
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A2:
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%cond.fr = freeze i1 %cond
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br i1 %cond.fr, label %REACHABLE, label %UNREACHABLE
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B:
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br i1 %dummycond, label %B2, label %DUMMY
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B2:
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%cond.fr2 = freeze i1 %cond
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br i1 %cond.fr2, label %UNREACHABLE, label %REACHABLE
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REACHABLE:
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call void @f()
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ret void
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UNREACHABLE:
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ret void
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DUMMY:
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ret void
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}
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define void @test2(i1 %cond, i1 %dummycond) {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: [[COND_FR0:%.*]] = freeze i1 [[COND:%.*]]
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; CHECK-NEXT: br i1 [[COND_FR0]], label [[A:%.*]], label [[B:%.*]]
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; CHECK: A:
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; CHECK-NEXT: br i1 [[DUMMYCOND:%.*]], label [[A2:%.*]], label [[DUMMY:%.*]]
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; CHECK: A2:
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; CHECK-NEXT: [[COND_FR:%.*]] = freeze i1 [[COND]]
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; CHECK-NEXT: br i1 [[COND_FR]], label [[REACHABLE:%.*]], label [[UNREACHABLE:%.*]]
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; CHECK: B:
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; CHECK-NEXT: br i1 [[DUMMYCOND]], label [[B2:%.*]], label [[DUMMY]]
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; CHECK: B2:
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; CHECK-NEXT: [[COND_FR2:%.*]] = freeze i1 [[COND]]
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; CHECK-NEXT: br i1 [[COND_FR2]], label [[UNREACHABLE]], label [[REACHABLE]]
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; CHECK: REACHABLE:
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; CHECK-NEXT: call void @f()
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; CHECK-NEXT: ret void
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; CHECK: UNREACHABLE:
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; CHECK-NEXT: ret void
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; CHECK: DUMMY:
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; CHECK-NEXT: ret void
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;
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%cond.fr0 = freeze i1 %cond
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br i1 %cond.fr0, label %A, label %B
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A:
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br i1 %dummycond, label %A2, label %DUMMY
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A2:
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%cond.fr = freeze i1 %cond
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br i1 %cond.fr, label %REACHABLE, label %UNREACHABLE
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B:
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br i1 %dummycond, label %B2, label %DUMMY
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B2:
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%cond.fr2 = freeze i1 %cond
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br i1 %cond.fr2, label %UNREACHABLE, label %REACHABLE
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REACHABLE:
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call void @f()
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ret void
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UNREACHABLE:
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ret void
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DUMMY:
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ret void
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}
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define void @and_noopt(i32 %x, i1 %cond2, i1 %dummycond) {
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; CHECK-LABEL: @and_noopt(
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; CHECK-NEXT: [[COND1:%.*]] = icmp slt i32 0, [[X:%.*]]
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; CHECK-NEXT: [[COND:%.*]] = and i1 [[COND1]], [[COND2:%.*]]
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; CHECK-NEXT: [[COND_FR0:%.*]] = freeze i1 [[COND]]
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; CHECK-NEXT: br i1 [[COND_FR0]], label [[A:%.*]], label [[B:%.*]]
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; CHECK: A:
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; CHECK-NEXT: br i1 [[DUMMYCOND:%.*]], label [[A2:%.*]], label [[DUMMY:%.*]]
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; CHECK: A2:
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; CHECK-NEXT: [[COND_FR:%.*]] = freeze i1 [[COND1]]
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; CHECK-NEXT: br i1 [[COND_FR]], label [[REACHABLE:%.*]], label [[UNREACHABLE:%.*]]
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; CHECK: B:
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; CHECK-NEXT: br i1 [[DUMMYCOND]], label [[B2:%.*]], label [[DUMMY]]
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; CHECK: B2:
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; CHECK-NEXT: [[COND_FR2:%.*]] = freeze i1 [[COND1]]
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; CHECK-NEXT: br i1 [[COND_FR2]], label [[UNREACHABLE]], label [[REACHABLE]]
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; CHECK: REACHABLE:
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; CHECK-NEXT: call void @f()
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; CHECK-NEXT: ret void
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; CHECK: UNREACHABLE:
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; CHECK-NEXT: ret void
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; CHECK: DUMMY:
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; CHECK-NEXT: ret void
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;
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%cond1 = icmp slt i32 0, %x
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%cond = and i1 %cond1, %cond2
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%cond.fr0 = freeze i1 %cond
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br i1 %cond.fr0, label %A, label %B
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A:
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br i1 %dummycond, label %A2, label %DUMMY
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A2:
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%cond.fr = freeze i1 %cond1
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br i1 %cond.fr, label %REACHABLE, label %UNREACHABLE
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B:
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br i1 %dummycond, label %B2, label %DUMMY
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B2:
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%cond.fr2 = freeze i1 %cond1
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br i1 %cond.fr2, label %UNREACHABLE, label %REACHABLE
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REACHABLE:
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call void @f()
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ret void
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UNREACHABLE:
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ret void
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DUMMY:
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ret void
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}
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define void @and(i32 %x, i1 %cond2, i1 %dummycond) {
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; CHECK-LABEL: @and(
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; CHECK-NEXT: [[COND1:%.*]] = icmp slt i32 0, [[X:%.*]]
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; CHECK-NEXT: [[COND:%.*]] = and i1 [[COND1]], [[COND2:%.*]]
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; CHECK-NEXT: br i1 [[COND]], label [[A:%.*]], label [[B:%.*]]
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; CHECK: A:
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; CHECK-NEXT: br i1 [[DUMMYCOND:%.*]], label [[A2:%.*]], label [[DUMMY:%.*]]
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; CHECK: A2:
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; CHECK-NEXT: [[COND_FR:%.*]] = freeze i1 [[COND1]]
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; CHECK-NEXT: br i1 [[COND_FR]], label [[REACHABLE:%.*]], label [[UNREACHABLE:%.*]]
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; CHECK: B:
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; CHECK-NEXT: br i1 [[DUMMYCOND]], label [[B2:%.*]], label [[DUMMY]]
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; CHECK: B2:
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; CHECK-NEXT: [[COND_FR2:%.*]] = freeze i1 [[COND1]]
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; CHECK-NEXT: br i1 [[COND_FR2]], label [[REACHABLE]], label [[REACHABLE2:%.*]]
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; CHECK: REACHABLE:
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; CHECK-NEXT: call void @f()
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; CHECK-NEXT: ret void
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; CHECK: REACHABLE2:
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; CHECK-NEXT: call void @f()
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; CHECK-NEXT: ret void
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; CHECK: UNREACHABLE:
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; CHECK-NEXT: ret void
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; CHECK: DUMMY:
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; CHECK-NEXT: ret void
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;
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%cond1 = icmp slt i32 0, %x
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%cond = and i1 %cond1, %cond2
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br i1 %cond, label %A, label %B
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A:
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br i1 %dummycond, label %A2, label %DUMMY
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A2:
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%cond.fr = freeze i1 %cond1
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br i1 %cond.fr, label %REACHABLE, label %UNREACHABLE
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B:
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br i1 %dummycond, label %B2, label %DUMMY
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B2:
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%cond.fr2 = freeze i1 %cond1
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br i1 %cond.fr2, label %REACHABLE, label %REACHABLE2
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REACHABLE:
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call void @f()
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ret void
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REACHABLE2:
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call void @f()
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ret void
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UNREACHABLE:
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ret void
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DUMMY:
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ret void
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}
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