forked from OSchip/llvm-project
78 lines
2.0 KiB
LLVM
78 lines
2.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=instcombine -S | FileCheck %s
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; PR2629
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define void @f(i8* %x) nounwind {
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; CHECK-LABEL: @f(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[BB:%.*]]
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; CHECK: bb:
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; CHECK-NEXT: [[L1:%.*]] = load i8, i8* [[X:%.*]], align 1
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; CHECK-NEXT: [[TMP0:%.*]] = add i8 [[L1]], -9
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; CHECK-NEXT: [[C1:%.*]] = icmp ult i8 [[TMP0]], -3
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; CHECK-NEXT: [[TMP1:%.*]] = add i8 [[L1]], -13
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; CHECK-NEXT: [[C2:%.*]] = icmp ult i8 [[TMP1]], -3
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; CHECK-NEXT: [[A1:%.*]] = and i1 [[C1]], [[C2]]
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; CHECK-NEXT: br i1 [[A1]], label [[INCOMPATIBLE:%.*]], label [[OKAY:%.*]]
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; CHECK: okay:
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; CHECK-NEXT: ret void
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; CHECK: incompatible:
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; CHECK-NEXT: ret void
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;
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entry:
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br label %bb
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bb:
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%g1 = getelementptr i8, i8* %x, i32 0
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%l1 = load i8, i8* %g1, align 1
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%s1 = sub i8 %l1, 6
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%c1 = icmp ugt i8 %s1, 2
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%s2 = sub i8 %l1, 10
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%c2 = icmp ugt i8 %s2, 2
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%a1 = and i1 %c1, %c2
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br i1 %a1, label %incompatible, label %okay
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okay:
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ret void
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incompatible:
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ret void
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}
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define void @f_logical(i8* %x) nounwind {
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; CHECK-LABEL: @f_logical(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[BB:%.*]]
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; CHECK: bb:
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; CHECK-NEXT: [[L1:%.*]] = load i8, i8* [[X:%.*]], align 1
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; CHECK-NEXT: [[TMP0:%.*]] = add i8 [[L1]], -9
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; CHECK-NEXT: [[C1:%.*]] = icmp ult i8 [[TMP0]], -3
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; CHECK-NEXT: [[TMP1:%.*]] = add i8 [[L1]], -13
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; CHECK-NEXT: [[C2:%.*]] = icmp ult i8 [[TMP1]], -3
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; CHECK-NEXT: [[A1:%.*]] = and i1 [[C1]], [[C2]]
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; CHECK-NEXT: br i1 [[A1]], label [[INCOMPATIBLE:%.*]], label [[OKAY:%.*]]
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; CHECK: okay:
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; CHECK-NEXT: ret void
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; CHECK: incompatible:
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; CHECK-NEXT: ret void
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;
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entry:
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br label %bb
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bb:
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%g1 = getelementptr i8, i8* %x, i32 0
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%l1 = load i8, i8* %g1, align 1
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%s1 = sub i8 %l1, 6
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%c1 = icmp ugt i8 %s1, 2
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%s2 = sub i8 %l1, 10
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%c2 = icmp ugt i8 %s2, 2
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%a1 = select i1 %c1, i1 %c2, i1 false
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br i1 %a1, label %incompatible, label %okay
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okay:
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ret void
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incompatible:
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ret void
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}
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