forked from OSchip/llvm-project
39 lines
1.2 KiB
LLVM
39 lines
1.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -passes=indvars -S < %s -opaque-pointers | FileCheck %s
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declare void @c(ptr)
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define void @test(ptr %arg) {
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; CHECK-LABEL: @test(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[O:%.*]] = getelementptr ptr, ptr [[ARG:%.*]], i64 16
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; CHECK-NEXT: call void @c(ptr [[O]])
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; CHECK-NEXT: [[UGLYGEP:%.*]] = getelementptr i8, ptr [[ARG]], i64 16
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; CHECK-NEXT: br label [[LOOP:%.*]]
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; CHECK: loop:
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; CHECK-NEXT: [[IDX:%.*]] = phi i32 [ 1, [[ENTRY:%.*]] ], [ [[INC:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[INC]] = add nuw nsw i32 [[IDX]], 1
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; CHECK-NEXT: [[C:%.*]] = icmp ne i32 [[INC]], 16
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; CHECK-NEXT: call void @c(ptr [[UGLYGEP]])
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; CHECK-NEXT: br i1 [[C]], label [[LOOP]], label [[END:%.*]]
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; CHECK: end:
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; CHECK-NEXT: ret void
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;
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entry:
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%o = getelementptr ptr, ptr %arg, i64 16
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call void @c(ptr %o)
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br label %loop
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loop:
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%idx = phi i32 [ 1, %entry ], [ %inc, %loop ]
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%inc = add i32 %idx, 1
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%c = icmp ne i32 %inc, 16
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%p = getelementptr ptr, ptr %arg, i32 2
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%p1 = getelementptr ptr, ptr %p, i32 %idx
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%neg = sub i32 0, %idx
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%p2 = getelementptr ptr, ptr %p1, i32 %neg
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call void @c(ptr %p2)
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br i1 %c, label %loop, label %end
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end:
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ret void
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}
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