29 lines
954 B
LLVM
29 lines
954 B
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=indvars -S | FileCheck %s
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declare void @foo(i16 noundef)
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; Function Attrs: mustprogress noreturn uwtable
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define void @bar(i64 noundef %ptr) {
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; CHECK-LABEL: @bar(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = trunc i64 [[PTR:%.*]] to i4
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; CHECK-NEXT: [[TMP1:%.*]] = zext i4 [[TMP0]] to i16
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; CHECK-NEXT: br label [[WHILE_BODY:%.*]]
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; CHECK: while.body:
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; CHECK-NEXT: tail call void @foo(i16 noundef signext [[TMP1]])
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; CHECK-NEXT: br label [[WHILE_BODY]]
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;
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entry:
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br label %while.body
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while.body: ; preds = %entry, %while.body
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%0 = phi i64 [ %ptr, %entry ], [ %add.ptr, %while.body ]
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%1 = trunc i64 %0 to i16
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%and = and i16 %1, 15 ; loop invariant
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tail call void @foo(i16 noundef signext %and)
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%add.ptr = add nsw i64 %0, 16
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br label %while.body
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}
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