122 lines
3.8 KiB
LLVM
122 lines
3.8 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -instsimplify -S | FileCheck %s
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declare void @llvm.assume(i1)
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declare void @use(i1)
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define void @basic_ugt(i32 %x, i32 %y) {
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; CHECK-LABEL: @basic_ugt(
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; CHECK-NEXT: [[CMP1:%.*]] = icmp ugt i32 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: call void @llvm.assume(i1 [[CMP1]])
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: ret void
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;
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%cmp1 = icmp ugt i32 %x, %y
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call void @llvm.assume(i1 %cmp1)
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%cmp2 = icmp ugt i32 %x, %y
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call void @use(i1 %cmp2)
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%cmp3 = icmp uge i32 %x, %y
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call void @use(i1 %cmp3)
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%cmp4 = icmp ult i32 %x, %y
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call void @use(i1 %cmp4)
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%cmp5 = icmp ule i32 %x, %y
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call void @use(i1 %cmp5)
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%cmp6 = icmp ugt i32 %y, %x
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call void @use(i1 %cmp6)
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%cmp7 = icmp uge i32 %y, %x
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call void @use(i1 %cmp7)
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%cmp8 = icmp ult i32 %y, %x
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call void @use(i1 %cmp8)
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%cmp9 = icmp ule i32 %y, %x
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call void @use(i1 %cmp9)
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ret void
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}
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define void @basic_uge(i32 %x, i32 %y) {
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; CHECK-LABEL: @basic_uge(
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; CHECK-NEXT: [[CMP1:%.*]] = icmp uge i32 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: call void @llvm.assume(i1 [[CMP1]])
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; CHECK-NEXT: [[CMP2:%.*]] = icmp ugt i32 [[X]], [[Y]]
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; CHECK-NEXT: call void @use(i1 [[CMP2]])
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: [[CMP5:%.*]] = icmp ule i32 [[X]], [[Y]]
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; CHECK-NEXT: call void @use(i1 [[CMP5]])
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: [[CMP7:%.*]] = icmp uge i32 [[Y]], [[X]]
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; CHECK-NEXT: call void @use(i1 [[CMP7]])
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; CHECK-NEXT: [[CMP8:%.*]] = icmp ult i32 [[Y]], [[X]]
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; CHECK-NEXT: call void @use(i1 [[CMP8]])
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: ret void
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;
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%cmp1 = icmp uge i32 %x, %y
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call void @llvm.assume(i1 %cmp1)
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%cmp2 = icmp ugt i32 %x, %y
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call void @use(i1 %cmp2)
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%cmp3 = icmp uge i32 %x, %y
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call void @use(i1 %cmp3)
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%cmp4 = icmp ult i32 %x, %y
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call void @use(i1 %cmp4)
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%cmp5 = icmp ule i32 %x, %y
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call void @use(i1 %cmp5)
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%cmp6 = icmp ugt i32 %y, %x
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call void @use(i1 %cmp6)
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%cmp7 = icmp uge i32 %y, %x
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call void @use(i1 %cmp7)
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%cmp8 = icmp ult i32 %y, %x
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call void @use(i1 %cmp8)
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%cmp9 = icmp ule i32 %y, %x
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call void @use(i1 %cmp9)
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ret void
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}
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; This does not simplify in InstSimplify, because AssumptionCache tracker
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; does not track values through "and". The "and" assume will be broken
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; down into two separate assume calls by InstCombine.
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define void @and(i32 %x, i32 %y, i32 %z) {
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; CHECK-LABEL: @and(
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; CHECK-NEXT: [[CMP1:%.*]] = icmp ugt i32 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[CMP2:%.*]] = icmp ugt i32 [[Z:%.*]], [[Y]]
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
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; CHECK-NEXT: call void @llvm.assume(i1 [[AND]])
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; CHECK-NEXT: [[CMP3:%.*]] = icmp ugt i32 [[X]], [[Y]]
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; CHECK-NEXT: call void @use(i1 [[CMP3]])
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; CHECK-NEXT: [[CMP4:%.*]] = icmp uge i32 [[X]], [[Y]]
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; CHECK-NEXT: call void @use(i1 [[CMP4]])
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; CHECK-NEXT: [[CMP5:%.*]] = icmp ugt i32 [[Z]], [[Y]]
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; CHECK-NEXT: call void @use(i1 [[CMP5]])
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; CHECK-NEXT: [[CMP6:%.*]] = icmp uge i32 [[Z]], [[Y]]
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; CHECK-NEXT: call void @use(i1 [[CMP6]])
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; CHECK-NEXT: ret void
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;
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%cmp1 = icmp ugt i32 %x, %y
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%cmp2 = icmp ugt i32 %z, %y
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%and = and i1 %cmp1, %cmp2
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call void @llvm.assume(i1 %and)
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%cmp3 = icmp ugt i32 %x, %y
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call void @use(i1 %cmp3)
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%cmp4 = icmp uge i32 %x, %y
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call void @use(i1 %cmp4)
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%cmp5 = icmp ugt i32 %z, %y
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call void @use(i1 %cmp5)
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%cmp6 = icmp uge i32 %z, %y
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call void @use(i1 %cmp6)
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ret void
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}
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