Unverified Commit 253ee85f authored by Yingwei Zheng's avatar Yingwei Zheng
Browse files

[CVP] Add pre-commit cttz/ctpop tests. NFC.

parent 2fab15d8

llvm/test/Transforms/CorrelatedValuePropagation/range.ll

+94 −0
Original line number Diff line number Diff line
@@ -1010,6 +1010,100 @@ else: 
  ret i1 %res2

}



define i1 @cttz_fold(i16 %x) {

; CHECK-LABEL: @cttz_fold(

; CHECK-NEXT:    [[CMP:%.*]] = icmp ult i16 [[X:%.*]], 256

; CHECK-NEXT:    br i1 [[CMP]], label [[IF:%.*]], label [[ELSE:%.*]]

; CHECK:       if:

; CHECK-NEXT:    [[CTTZ:%.*]] = call i16 @llvm.cttz.i16(i16 [[X]], i1 true)

; CHECK-NEXT:    [[RES:%.*]] = icmp uge i16 [[CTTZ]], 8

; CHECK-NEXT:    ret i1 [[RES]]

; CHECK:       else:

; CHECK-NEXT:    ret i1 false

;

  %cmp = icmp ult i16 %x, 256

  br i1 %cmp, label %if, label %else



if:

  %cttz = call i16 @llvm.cttz.i16(i16 %x, i1 true)

  %res = icmp uge i16 %cttz, 8

  ret i1 %res



else:

  ret i1 false

}



define i1 @cttz_nofold(i16 %x) {

; CHECK-LABEL: @cttz_nofold(

; CHECK-NEXT:    [[CMP:%.*]] = icmp ult i16 [[X:%.*]], 256

; CHECK-NEXT:    br i1 [[CMP]], label [[IF:%.*]], label [[ELSE:%.*]]

; CHECK:       if:

; CHECK-NEXT:    [[CTTZ:%.*]] = call i16 @llvm.cttz.i16(i16 [[X]], i1 true)

; CHECK-NEXT:    [[RES:%.*]] = icmp uge i16 [[CTTZ]], 9

; CHECK-NEXT:    ret i1 [[RES]]

; CHECK:       else:

; CHECK-NEXT:    ret i1 false

;

  %cmp = icmp ult i16 %x, 256

  br i1 %cmp, label %if, label %else



if:

  %cttz = call i16 @llvm.cttz.i16(i16 %x, i1 true)

  %res = icmp uge i16 %cttz, 9

  ret i1 %res



else:

  ret i1 false

}



define i1 @ctpop_fold(i16 %x) {

; CHECK-LABEL: @ctpop_fold(

; CHECK-NEXT:    [[CMP:%.*]] = icmp ult i16 [[X:%.*]], 256

; CHECK-NEXT:    br i1 [[CMP]], label [[IF:%.*]], label [[ELSE:%.*]]

; CHECK:       if:

; CHECK-NEXT:    [[CTPOP:%.*]] = call i16 @llvm.ctpop.i16(i16 [[X]])

; CHECK-NEXT:    [[RES:%.*]] = icmp ule i16 [[CTPOP]], 8

; CHECK-NEXT:    ret i1 [[RES]]

; CHECK:       else:

; CHECK-NEXT:    ret i1 true

;

  %cmp = icmp ult i16 %x, 256

  br i1 %cmp, label %if, label %else



if:

  %ctpop = call i16 @llvm.ctpop.i16(i16 %x)

  %res = icmp ule i16 %ctpop, 8

  ret i1 %res



else:

  ret i1 true

}



define i1 @ctpop_nofold(i16 %x) {

; CHECK-LABEL: @ctpop_nofold(

; CHECK-NEXT:    [[CMP:%.*]] = icmp ult i16 [[X:%.*]], 256

; CHECK-NEXT:    br i1 [[CMP]], label [[IF:%.*]], label [[ELSE:%.*]]

; CHECK:       if:

; CHECK-NEXT:    [[CTPOP:%.*]] = call i16 @llvm.ctpop.i16(i16 [[X]])

; CHECK-NEXT:    [[RES:%.*]] = icmp ule i16 [[CTPOP]], 7

; CHECK-NEXT:    ret i1 [[RES]]

; CHECK:       else:

; CHECK-NEXT:    ret i1 true

;

  %cmp = icmp ult i16 %x, 256

  br i1 %cmp, label %if, label %else



if:

  %ctpop = call i16 @llvm.ctpop.i16(i16 %x)

  %res = icmp ule i16 %ctpop, 7

  ret i1 %res



else:

  ret i1 true

}



declare i16 @llvm.ctlz.i16(i16, i1)

declare i16 @llvm.cttz.i16(i16, i1)

declare i16 @llvm.ctpop.i16(i16)

declare i16 @llvm.abs.i16(i16, i1)

declare void @llvm.assume(i1)