45 lines
1.5 KiB
LLVM
45 lines
1.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -loop-reduce < %s | FileCheck %s
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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declare void @maybe_throws()
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declare void @use1(i1)
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define void @is_not_null(i8* %baseptr) local_unnamed_addr align 2 personality i8* undef {
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; CHECK-LABEL: @is_not_null(
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; CHECK-NEXT: preheader:
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; CHECK-NEXT: br label [[HEADER:%.*]]
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; CHECK: header:
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; CHECK-NEXT: [[PTR:%.*]] = phi i8* [ [[INCPTR:%.*]], [[LATCH:%.*]] ], [ [[BASEPTR:%.*]], [[PREHEADER:%.*]] ]
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; CHECK-NEXT: invoke void @maybe_throws()
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; CHECK-NEXT: to label [[LATCH]] unwind label [[LPAD:%.*]]
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; CHECK: lpad:
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; CHECK-NEXT: [[TMP0:%.*]] = landingpad { i8*, i32 }
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; CHECK-NEXT: catch i8* null
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; CHECK-NEXT: [[PTR_IS_NOT_NULL:%.*]] = icmp ne i8* [[PTR]], null
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; CHECK-NEXT: call void @use1(i1 [[PTR_IS_NOT_NULL]])
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; CHECK-NEXT: ret void
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; CHECK: latch:
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; CHECK-NEXT: [[INCPTR]] = getelementptr inbounds i8, i8* [[PTR]], i64 1
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; CHECK-NEXT: br label [[HEADER]]
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;
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preheader:
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br label %header
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header:
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%ptr = phi i8* [ %incptr, %latch ], [ %baseptr, %preheader ]
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invoke void @maybe_throws() to label %latch unwind label %lpad
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lpad:
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landingpad { i8*, i32 } catch i8* null
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%ptr_is_not_null = icmp ne i8* %ptr, null
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call void @use1(i1 %ptr_is_not_null)
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ret void
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latch:
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%incptr = getelementptr inbounds i8, i8* %ptr, i64 1
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br label %header
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}
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