33 lines
1.1 KiB
LLVM
33 lines
1.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -indvars -indvars-predicate-loops=0 -S | FileCheck %s
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
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target triple = "i386-apple-darwin10.0"
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; We make sinking here, Changed flag should be set properly.
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define i32 @test(i32 %a, i32 %b, i32 %N) {
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; CHECK-LABEL: @test(
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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: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i32 [[IV]], 1
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; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[IV_NEXT]], [[N:%.*]]
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; CHECK-NEXT: br i1 [[CMP]], label [[LOOP]], label [[EXIT:%.*]]
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; CHECK: exit:
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; CHECK-NEXT: [[ADD:%.*]] = add i32 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: ret i32 [[ADD]]
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;
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entry:
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%add = add i32 %a, %b
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br label %loop
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loop:
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%iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ]
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%iv.next = add i32 %iv, 1
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%cmp = icmp slt i32 %iv.next, %N
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br i1 %cmp, label %loop, label %exit
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exit:
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ret i32 %add
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}
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