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[InstCombine] add tests for icmp with bitmask logic op; NFC

This commit is contained in:
Sanjay Patel 2020-04-24 14:34:02 -04:00
parent f5677fe700
commit 9193644f77
1 changed files with 111 additions and 0 deletions
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111
llvm/test/Transforms/InstCombine/icmp-or.ll Normal file
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -instcombine -S | FileCheck %s
define i1 @set_low_bit_mask_eq(i8 %x) {
; CHECK-LABEL: @set_low_bit_mask_eq(
; CHECK-NEXT: [[SUB:%.*]] = or i8 [[X:%.*]], 1
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i8 [[SUB]], 19
; CHECK-NEXT: ret i1 [[CMP]]
;
%sub = or i8 %x, 1
%cmp = icmp eq i8 %sub, 19
ret i1 %cmp
}
define <2 x i1> @set_low_bit_mask_ne(<2 x i8> %x) {
; CHECK-LABEL: @set_low_bit_mask_ne(
; CHECK-NEXT: [[SUB:%.*]] = or <2 x i8> [[X:%.*]], <i8 3, i8 3>
; CHECK-NEXT: [[CMP:%.*]] = icmp ne <2 x i8> [[SUB]], <i8 19, i8 19>
; CHECK-NEXT: ret <2 x i1> [[CMP]]
;
%sub = or <2 x i8> %x, <i8 3, i8 3>
%cmp = icmp ne <2 x i8> %sub, <i8 19, i8 19>
ret <2 x i1> %cmp
}
define i1 @set_low_bit_mask_ugt(i8 %x) {
; CHECK-LABEL: @set_low_bit_mask_ugt(
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8 [[X:%.*]], 19
; CHECK-NEXT: ret i1 [[CMP]]
;
%sub = or i8 %x, 3
%cmp = icmp ugt i8 %sub, 19
ret i1 %cmp
}
define i1 @set_low_bit_mask_ult(i8 %x) {
; CHECK-LABEL: @set_low_bit_mask_ult(
; CHECK-NEXT: [[SUB:%.*]] = or i8 [[X:%.*]], 3
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i8 [[SUB]], 19
; CHECK-NEXT: ret i1 [[CMP]]
;
%sub = or i8 %x, 3
%cmp = icmp ult i8 %sub, 19
ret i1 %cmp
}
define i1 @set_low_bit_mask_uge(i8 %x) {
; CHECK-LABEL: @set_low_bit_mask_uge(
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8 [[X:%.*]], 19
; CHECK-NEXT: ret i1 [[CMP]]
;
%sub = or i8 %x, 3
%cmp = icmp uge i8 %sub, 20
ret i1 %cmp
}
define i1 @set_low_bit_mask_ule(i8 %x) {
; CHECK-LABEL: @set_low_bit_mask_ule(
; CHECK-NEXT: [[SUB:%.*]] = or i8 [[X:%.*]], 3
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i8 [[SUB]], 19
; CHECK-NEXT: ret i1 [[CMP]]
;
%sub = or i8 %x, 3
%cmp = icmp ule i8 %sub, 18
ret i1 %cmp
}
define i1 @set_low_bit_mask_sgt(i8 %x) {
; CHECK-LABEL: @set_low_bit_mask_sgt(
; CHECK-NEXT: [[SUB:%.*]] = or i8 [[X:%.*]], 3
; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i8 [[SUB]], 20
; CHECK-NEXT: ret i1 [[CMP]]
;
%sub = or i8 %x, 3
%cmp = icmp sgt i8 %sub, 20
ret i1 %cmp
}
define i1 @set_low_bit_mask_slt(i8 %x) {
; CHECK-LABEL: @set_low_bit_mask_slt(
; CHECK-NEXT: [[SUB:%.*]] = or i8 [[X:%.*]], 15
; CHECK-NEXT: [[CMP:%.*]] = icmp slt i8 [[SUB]], 19
; CHECK-NEXT: ret i1 [[CMP]]
;
%sub = or i8 %x, 15
%cmp = icmp slt i8 %sub, 19
ret i1 %cmp
}
define i1 @set_low_bit_mask_sge(i8 %x) {
; CHECK-LABEL: @set_low_bit_mask_sge(
; CHECK-NEXT: [[SUB:%.*]] = or i8 [[X:%.*]], 31
; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i8 [[SUB]], 50
; CHECK-NEXT: ret i1 [[CMP]]
;
%sub = or i8 %x, 31
%cmp = icmp sge i8 %sub, 51
ret i1 %cmp
}
define i1 @set_low_bit_mask_sle(i8 %x) {
; CHECK-LABEL: @set_low_bit_mask_sle(
; CHECK-NEXT: [[SUB:%.*]] = or i8 [[X:%.*]], 63
; CHECK-NEXT: [[CMP:%.*]] = icmp slt i8 [[SUB]], 69
; CHECK-NEXT: ret i1 [[CMP]]
;
%sub = or i8 %x, 63
%cmp = icmp sle i8 %sub, 68
ret i1 %cmp
}