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TheRock/compiler/amd-llvm/llvm/test/Transforms/InstCombine/2008-08-05-And.ll
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76 lines
2.0 KiB
LLVM

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