73 lines
2.2 KiB
LLVM
73 lines
2.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -passes=indvars -verify-scev < %s | FileCheck %s
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define void @test_pr54434() {
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; CHECK-LABEL: @test_pr54434(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[FOR_COND:%.*]]
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; CHECK: for.cond:
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; CHECK-NEXT: br i1 false, label [[FOR_COND92_PREHEADER:%.*]], label [[FOR_END106:%.*]]
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; CHECK: for.cond92.preheader:
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; CHECK-NEXT: br label [[FOR_COND92:%.*]]
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; CHECK: for.cond92:
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; CHECK-NEXT: br i1 false, label [[FOR_BODY94:%.*]], label [[FOR_END:%.*]]
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; CHECK: for.body94:
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; CHECK-NEXT: br label [[FOR_COND92]]
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; CHECK: for.end:
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; CHECK-NEXT: br label [[FOR_COND]]
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; CHECK: for.end106:
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; CHECK-NEXT: ret void
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;
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entry:
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br label %for.cond
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for.cond: ; preds = %for.end, %entry
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%0 = phi i32 [ %inc105, %for.end ], [ 0, %entry ]
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%cmp = icmp sge i32 %0, 1
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br i1 %cmp, label %for.cond92, label %for.end106
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for.cond92: ; preds = %for.body94, %for.cond
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%1 = phi i16 [ %inc, %for.body94 ], [ 0, %for.cond ]
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%cmp93 = icmp slt i16 %1, 1
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br i1 %cmp93, label %for.body94, label %for.end
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for.body94: ; preds = %for.cond92
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%inc = add nsw i16 %1, 1
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br label %for.cond92
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for.end: ; preds = %for.cond92
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%inc105 = add nsw i32 %0, 1
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br label %for.cond
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for.end106: ; preds = %for.cond
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ret void
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}
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define i32 @test_pr58439(i32 %a) {
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; CHECK-LABEL: @test_pr58439(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[LOOP:%.*]]
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; CHECK: loop:
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; CHECK-NEXT: br i1 false, label [[LOOP]], label [[EXIT:%.*]]
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; CHECK: exit:
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; CHECK-NEXT: [[C_EXT_LCSSA:%.*]] = phi i32 [ 0, [[LOOP]] ]
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; CHECK-NEXT: [[OR:%.*]] = or i32 [[A:%.*]], 1
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; CHECK-NEXT: [[RES:%.*]] = add i32 [[C_EXT_LCSSA]], [[OR]]
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; CHECK-NEXT: ret i32 [[RES]]
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;
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entry:
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%or = or i32 %a, 1
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br label %loop
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loop:
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%iv = phi i32 [ 1, %entry ], [ %iv.next, %loop ]
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%iv.next = add i32 %iv, 1
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%c.1 = icmp eq i32 %iv.next, %or
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%c.ext = zext i1 %c.1 to i32
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br i1 false, label %loop, label %exit
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exit:
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%res = add i32 %c.ext, %or
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ret i32 %res
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}
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