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dda73336ad22bd0b5ecda17040c50fb10fcbe5fb
clang-p2996/llvm/test/Transforms/InstCombine/select-with-bitwise-ops.ll
Craig Topper 7ec4f6094e [InstCombine] Infer disjoint flag on Or instructions. (#72912) 
The disjoint flag was recently added to IR in #72583

We already set it when we turn an add into an or. This patch sets it on Ors that weren't converted from an Add.
2023-12-02 14:11:12 -08:00

1670 lines
61 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=instcombine -S | FileCheck %s
target datalayout = "n8:16:32:64"
declare void @use(i8)
declare void @use_vec(<2 x i8>)
define i32 @select_icmp_eq_and_1_0_or_2(i32 %x, i32 %y) {
; CHECK-LABEL: @select_icmp_eq_and_1_0_or_2(
; CHECK-NEXT: [[AND:%.*]] = shl i32 [[X:%.*]], 1
; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[AND]], 2
; CHECK-NEXT: [[SELECT:%.*]] = or i32 [[TMP1]], [[Y:%.*]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i32 %x, 1
%cmp = icmp eq i32 %and, 0
%or = or i32 %y, 2
%select = select i1 %cmp, i32 %y, i32 %or
ret i32 %select
}
define <2 x i32> @select_icmp_eq_and_1_0_or_2_vec(<2 x i32> %x, <2 x i32> %y) {
; CHECK-LABEL: @select_icmp_eq_and_1_0_or_2_vec(
; CHECK-NEXT: [[AND:%.*]] = shl <2 x i32> [[X:%.*]], <i32 1, i32 1>
; CHECK-NEXT: [[TMP1:%.*]] = and <2 x i32> [[AND]], <i32 2, i32 2>
; CHECK-NEXT: [[SELECT:%.*]] = or <2 x i32> [[TMP1]], [[Y:%.*]]
; CHECK-NEXT: ret <2 x i32> [[SELECT]]
;
%and = and <2 x i32> %x, <i32 1, i32 1>
%cmp = icmp eq <2 x i32> %and, zeroinitializer
%or = or <2 x i32> %y, <i32 2, i32 2>
%select = select <2 x i1> %cmp, <2 x i32> %y, <2 x i32> %or
ret <2 x i32> %select
}
define i32 @select_icmp_eq_and_1_0_xor_2(i32 %x, i32 %y) {
; CHECK-LABEL: @select_icmp_eq_and_1_0_xor_2(
; CHECK-NEXT: [[AND:%.*]] = shl i32 [[X:%.*]], 1
; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[AND]], 2
; CHECK-NEXT: [[SELECT:%.*]] = xor i32 [[TMP1]], [[Y:%.*]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i32 %x, 1
%cmp = icmp eq i32 %and, 0
%xor = xor i32 %y, 2
%select = select i1 %cmp, i32 %y, i32 %xor
ret i32 %select
}
define i32 @select_icmp_eq_and_1_0_and_not_2(i32 %x, i32 %y) {
; CHECK-LABEL: @select_icmp_eq_and_1_0_and_not_2(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 1
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[Y:%.*]], -3
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP]], i32 [[Y]], i32 [[AND2]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i32 %x, 1
%cmp = icmp eq i32 %and, 0
%and2 = and i32 %y, -3
%select = select i1 %cmp, i32 %y, i32 %and2
ret i32 %select
}
define i32 @select_icmp_eq_and_32_0_or_8(i32 %x, i32 %y) {
; CHECK-LABEL: @select_icmp_eq_and_32_0_or_8(
; CHECK-NEXT: [[AND:%.*]] = lshr i32 [[X:%.*]], 2
; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[AND]], 8
; CHECK-NEXT: [[SELECT:%.*]] = or i32 [[TMP1]], [[Y:%.*]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i32 %x, 32
%cmp = icmp eq i32 %and, 0
%or = or i32 %y, 8
%select = select i1 %cmp, i32 %y, i32 %or
ret i32 %select
}
define <2 x i32> @select_icmp_eq_and_32_0_or_8_vec(<2 x i32> %x, <2 x i32> %y) {
; CHECK-LABEL: @select_icmp_eq_and_32_0_or_8_vec(
; CHECK-NEXT: [[AND:%.*]] = lshr <2 x i32> [[X:%.*]], <i32 2, i32 2>
; CHECK-NEXT: [[TMP1:%.*]] = and <2 x i32> [[AND]], <i32 8, i32 8>
; CHECK-NEXT: [[SELECT:%.*]] = or <2 x i32> [[TMP1]], [[Y:%.*]]
; CHECK-NEXT: ret <2 x i32> [[SELECT]]
;
%and = and <2 x i32> %x, <i32 32, i32 32>
%cmp = icmp eq <2 x i32> %and, zeroinitializer
%or = or <2 x i32> %y, <i32 8, i32 8>
%select = select <2 x i1> %cmp, <2 x i32> %y, <2 x i32> %or
ret <2 x i32> %select
}
define i32 @select_icmp_eq_and_32_0_xor_8(i32 %x, i32 %y) {
; CHECK-LABEL: @select_icmp_eq_and_32_0_xor_8(
; CHECK-NEXT: [[AND:%.*]] = lshr i32 [[X:%.*]], 2
; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[AND]], 8
; CHECK-NEXT: [[SELECT:%.*]] = xor i32 [[TMP1]], [[Y:%.*]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i32 %x, 32
%cmp = icmp eq i32 %and, 0
%xor = xor i32 %y, 8
%select = select i1 %cmp, i32 %y, i32 %xor
ret i32 %select
}
define i32 @select_icmp_eq_and_32_0_and_not_8(i32 %x, i32 %y) {
; CHECK-LABEL: @select_icmp_eq_and_32_0_and_not_8(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 32
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[Y:%.*]], -9
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP]], i32 [[Y]], i32 [[AND2]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i32 %x, 32
%cmp = icmp eq i32 %and, 0
%and2 = and i32 %y, -9
%select = select i1 %cmp, i32 %y, i32 %and2
ret i32 %select
}
define i32 @select_icmp_ne_0_and_4096_or_4096(i32 %x, i32 %y) {
; CHECK-LABEL: @select_icmp_ne_0_and_4096_or_4096(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[AND]], 4096
; CHECK-NEXT: [[SELECT:%.*]] = or i32 [[TMP1]], [[Y:%.*]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i32 %x, 4096
%cmp = icmp ne i32 0, %and
%or = or i32 %y, 4096
%select = select i1 %cmp, i32 %y, i32 %or
ret i32 %select
}
define <2 x i32> @select_icmp_ne_0_and_4096_or_4096_vec(<2 x i32> %x, <2 x i32> %y) {
; CHECK-LABEL: @select_icmp_ne_0_and_4096_or_4096_vec(
; CHECK-NEXT: [[AND:%.*]] = and <2 x i32> [[X:%.*]], <i32 4096, i32 4096>
; CHECK-NEXT: [[TMP1:%.*]] = xor <2 x i32> [[AND]], <i32 4096, i32 4096>
; CHECK-NEXT: [[SELECT:%.*]] = or <2 x i32> [[TMP1]], [[Y:%.*]]
; CHECK-NEXT: ret <2 x i32> [[SELECT]]
;
%and = and <2 x i32> %x, <i32 4096, i32 4096>
%cmp = icmp ne <2 x i32> zeroinitializer, %and
%or = or <2 x i32> %y, <i32 4096, i32 4096>
%select = select <2 x i1> %cmp, <2 x i32> %y, <2 x i32> %or
ret <2 x i32> %select
}
define i32 @select_icmp_ne_0_and_4096_xor_4096(i32 %x, i32 %y) {
; CHECK-LABEL: @select_icmp_ne_0_and_4096_xor_4096(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[AND]], [[Y:%.*]]
; CHECK-NEXT: [[SELECT:%.*]] = xor i32 [[TMP1]], 4096
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i32 %x, 4096
%cmp = icmp ne i32 0, %and
%xor = xor i32 %y, 4096
%select = select i1 %cmp, i32 %y, i32 %xor
ret i32 %select
}
define i32 @select_icmp_ne_0_and_4096_and_not_4096(i32 %x, i32 %y) {
; CHECK-LABEL: @select_icmp_ne_0_and_4096_and_not_4096(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[Y:%.*]], -4097
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP_NOT]], i32 [[AND2]], i32 [[Y]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i32 %x, 4096
%cmp = icmp ne i32 0, %and
%and2 = and i32 %y, -4097
%select = select i1 %cmp, i32 %y, i32 %and2
ret i32 %select
}
define i32 @select_icmp_eq_and_4096_0_or_4096(i32 %x, i32 %y) {
; CHECK-LABEL: @select_icmp_eq_and_4096_0_or_4096(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[SELECT:%.*]] = or i32 [[AND]], [[Y:%.*]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i32 %x, 4096
%cmp = icmp eq i32 %and, 0
%or = or i32 %y, 4096
%select = select i1 %cmp, i32 %y, i32 %or
ret i32 %select
}
define <2 x i32> @select_icmp_eq_and_4096_0_or_4096_vec(<2 x i32> %x, <2 x i32> %y) {
; CHECK-LABEL: @select_icmp_eq_and_4096_0_or_4096_vec(
; CHECK-NEXT: [[AND:%.*]] = and <2 x i32> [[X:%.*]], <i32 4096, i32 4096>
; CHECK-NEXT: [[SELECT:%.*]] = or <2 x i32> [[AND]], [[Y:%.*]]
; CHECK-NEXT: ret <2 x i32> [[SELECT]]
;
%and = and <2 x i32> %x, <i32 4096, i32 4096>
%cmp = icmp eq <2 x i32> %and, zeroinitializer
%or = or <2 x i32> %y, <i32 4096, i32 4096>
%select = select <2 x i1> %cmp, <2 x i32> %y, <2 x i32> %or
ret <2 x i32> %select
}
define i32 @select_icmp_eq_and_4096_0_xor_4096(i32 %x, i32 %y) {
; CHECK-LABEL: @select_icmp_eq_and_4096_0_xor_4096(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[SELECT:%.*]] = xor i32 [[AND]], [[Y:%.*]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i32 %x, 4096
%cmp = icmp eq i32 %and, 0
%xor = xor i32 %y, 4096
%select = select i1 %cmp, i32 %y, i32 %xor
ret i32 %select
}
define i32 @select_icmp_eq_and_4096_0_and_not_4096(i32 %x, i32 %y) {
; CHECK-LABEL: @select_icmp_eq_and_4096_0_and_not_4096(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[Y:%.*]], -4097
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP]], i32 [[Y]], i32 [[AND2]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i32 %x, 4096
%cmp = icmp eq i32 %and, 0
%and2 = and i32 %y, -4097
%select = select i1 %cmp, i32 %y, i32 %and2
ret i32 %select
}
define i32 @select_icmp_eq_0_and_1_or_1(i64 %x, i32 %y) {
; CHECK-LABEL: @select_icmp_eq_0_and_1_or_1(
; CHECK-NEXT: [[TMP1:%.*]] = trunc i64 [[X:%.*]] to i32
; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], 1
; CHECK-NEXT: [[SELECT:%.*]] = or i32 [[TMP2]], [[Y:%.*]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i64 %x, 1
%cmp = icmp eq i64 %and, 0
%or = or i32 %y, 1
%select = select i1 %cmp, i32 %y, i32 %or
ret i32 %select
}
define <2 x i32> @select_icmp_eq_0_and_1_or_1_vec(<2 x i64> %x, <2 x i32> %y) {
; CHECK-LABEL: @select_icmp_eq_0_and_1_or_1_vec(
; CHECK-NEXT: [[TMP1:%.*]] = trunc <2 x i64> [[X:%.*]] to <2 x i32>
; CHECK-NEXT: [[TMP2:%.*]] = and <2 x i32> [[TMP1]], <i32 1, i32 1>
; CHECK-NEXT: [[SELECT:%.*]] = or <2 x i32> [[TMP2]], [[Y:%.*]]
; CHECK-NEXT: ret <2 x i32> [[SELECT]]
;
%and = and <2 x i64> %x, <i64 1, i64 1>
%cmp = icmp eq <2 x i64> %and, zeroinitializer
%or = or <2 x i32> %y, <i32 1, i32 1>
%select = select <2 x i1> %cmp, <2 x i32> %y, <2 x i32> %or
ret <2 x i32> %select
}
define i32 @select_icmp_eq_0_and_1_xor_1(i64 %x, i32 %y) {
; CHECK-LABEL: @select_icmp_eq_0_and_1_xor_1(
; CHECK-NEXT: [[TMP1:%.*]] = trunc i64 [[X:%.*]] to i32
; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], 1
; CHECK-NEXT: [[SELECT:%.*]] = xor i32 [[TMP2]], [[Y:%.*]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i64 %x, 1
%cmp = icmp eq i64 %and, 0
%xor = xor i32 %y, 1
%select = select i1 %cmp, i32 %y, i32 %xor
ret i32 %select
}
define i32 @select_icmp_eq_0_and_1_and_not_1(i64 %x, i32 %y) {
; CHECK-LABEL: @select_icmp_eq_0_and_1_and_not_1(
; CHECK-NEXT: [[AND:%.*]] = and i64 [[X:%.*]], 1
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i64 [[AND]], 0
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[Y:%.*]], -2
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP]], i32 [[Y]], i32 [[AND2]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i64 %x, 1
%cmp = icmp eq i64 %and, 0
%and2 = and i32 %y, -2
%select = select i1 %cmp, i32 %y, i32 %and2
ret i32 %select
}
define i32 @select_icmp_ne_0_and_4096_or_32(i32 %x, i32 %y) {
; CHECK-LABEL: @select_icmp_ne_0_and_4096_or_32(
; CHECK-NEXT: [[AND:%.*]] = lshr i32 [[X:%.*]], 7
; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[AND]], 32
; CHECK-NEXT: [[TMP2:%.*]] = xor i32 [[TMP1]], 32
; CHECK-NEXT: [[SELECT:%.*]] = or i32 [[TMP2]], [[Y:%.*]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i32 %x, 4096
%cmp = icmp ne i32 0, %and
%or = or i32 %y, 32
%select = select i1 %cmp, i32 %y, i32 %or
ret i32 %select
}
define i32 @select_icmp_ne_0_and_4096_xor_32(i32 %x, i32 %y) {
; CHECK-LABEL: @select_icmp_ne_0_and_4096_xor_32(
; CHECK-NEXT: [[AND:%.*]] = lshr i32 [[X:%.*]], 7
; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[AND]], 32
; CHECK-NEXT: [[TMP2:%.*]] = xor i32 [[TMP1]], [[Y:%.*]]
; CHECK-NEXT: [[SELECT:%.*]] = xor i32 [[TMP2]], 32
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i32 %x, 4096
%cmp = icmp ne i32 0, %and
%xor = xor i32 %y, 32
%select = select i1 %cmp, i32 %y, i32 %xor
ret i32 %select
}
define i32 @select_icmp_ne_0_and_4096_and_not_32(i32 %x, i32 %y) {
; CHECK-LABEL: @select_icmp_ne_0_and_4096_and_not_32(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[Y:%.*]], -33
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP_NOT]], i32 [[AND2]], i32 [[Y]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i32 %x, 4096
%cmp = icmp ne i32 0, %and
%and2 = and i32 %y, -33
%select = select i1 %cmp, i32 %y, i32 %and2
ret i32 %select
}
define i32 @select_icmp_ne_0_and_32_or_4096(i32 %x, i32 %y) {
; CHECK-LABEL: @select_icmp_ne_0_and_32_or_4096(
; CHECK-NEXT: [[AND:%.*]] = shl i32 [[X:%.*]], 7
; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[AND]], 4096
; CHECK-NEXT: [[TMP2:%.*]] = xor i32 [[TMP1]], 4096
; CHECK-NEXT: [[SELECT:%.*]] = or i32 [[TMP2]], [[Y:%.*]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i32 %x, 32
%cmp = icmp ne i32 0, %and
%or = or i32 %y, 4096
%select = select i1 %cmp, i32 %y, i32 %or
ret i32 %select
}
define <2 x i32> @select_icmp_ne_0_and_32_or_4096_vec(<2 x i32> %x, <2 x i32> %y) {
; CHECK-LABEL: @select_icmp_ne_0_and_32_or_4096_vec(
; CHECK-NEXT: [[AND:%.*]] = shl <2 x i32> [[X:%.*]], <i32 7, i32 7>
; CHECK-NEXT: [[TMP1:%.*]] = and <2 x i32> [[AND]], <i32 4096, i32 4096>
; CHECK-NEXT: [[TMP2:%.*]] = xor <2 x i32> [[TMP1]], <i32 4096, i32 4096>
; CHECK-NEXT: [[SELECT:%.*]] = or <2 x i32> [[TMP2]], [[Y:%.*]]
; CHECK-NEXT: ret <2 x i32> [[SELECT]]
;
%and = and <2 x i32> %x, <i32 32, i32 32>
%cmp = icmp ne <2 x i32> zeroinitializer, %and
%or = or <2 x i32> %y, <i32 4096, i32 4096>
%select = select <2 x i1> %cmp, <2 x i32> %y, <2 x i32> %or
ret <2 x i32> %select
}
define i32 @select_icmp_ne_0_and_32_xor_4096(i32 %x, i32 %y) {
; CHECK-LABEL: @select_icmp_ne_0_and_32_xor_4096(
; CHECK-NEXT: [[AND:%.*]] = shl i32 [[X:%.*]], 7
; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[AND]], 4096
; CHECK-NEXT: [[TMP2:%.*]] = xor i32 [[TMP1]], [[Y:%.*]]
; CHECK-NEXT: [[SELECT:%.*]] = xor i32 [[TMP2]], 4096
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i32 %x, 32
%cmp = icmp ne i32 0, %and
%xor = xor i32 %y, 4096
%select = select i1 %cmp, i32 %y, i32 %xor
ret i32 %select
}
define i32 @select_icmp_ne_0_and_32_and_not_4096(i32 %x, i32 %y) {
; CHECK-LABEL: @select_icmp_ne_0_and_32_and_not_4096(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 32
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[Y:%.*]], -4097
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP_NOT]], i32 [[AND2]], i32 [[Y]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i32 %x, 32
%cmp = icmp ne i32 0, %and
%and2 = and i32 %y, -4097
%select = select i1 %cmp, i32 %y, i32 %and2
ret i32 %select
}
define i8 @select_icmp_ne_0_and_1073741824_or_8(i32 %x, i8 %y) {
; CHECK-LABEL: @select_icmp_ne_0_and_1073741824_or_8(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 1073741824
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[OR:%.*]] = or i8 [[Y:%.*]], 8
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP_NOT]], i8 [[OR]], i8 [[Y]]
; CHECK-NEXT: ret i8 [[SELECT]]
;
%and = and i32 %x, 1073741824
%cmp = icmp ne i32 0, %and
%or = or i8 %y, 8
%select = select i1 %cmp, i8 %y, i8 %or
ret i8 %select
}
define i8 @select_icmp_ne_0_and_1073741824_xor_8(i32 %x, i8 %y) {
; CHECK-LABEL: @select_icmp_ne_0_and_1073741824_xor_8(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 1073741824
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[XOR:%.*]] = xor i8 [[Y:%.*]], 8
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP_NOT]], i8 [[XOR]], i8 [[Y]]
; CHECK-NEXT: ret i8 [[SELECT]]
;
%and = and i32 %x, 1073741824
%cmp = icmp ne i32 0, %and
%xor = xor i8 %y, 8
%select = select i1 %cmp, i8 %y, i8 %xor
ret i8 %select
}
define i8 @select_icmp_ne_0_and_1073741824_and_not_8(i32 %x, i8 %y) {
; CHECK-LABEL: @select_icmp_ne_0_and_1073741824_and_not_8(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 1073741824
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[AND2:%.*]] = and i8 [[Y:%.*]], -9
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP_NOT]], i8 [[AND2]], i8 [[Y]]
; CHECK-NEXT: ret i8 [[SELECT]]
;
%and = and i32 %x, 1073741824
%cmp = icmp ne i32 0, %and
%and2 = and i8 %y, -9
%select = select i1 %cmp, i8 %y, i8 %and2
ret i8 %select
}
define i32 @select_icmp_ne_0_and_8_or_1073741824(i8 %x, i32 %y) {
; CHECK-LABEL: @select_icmp_ne_0_and_8_or_1073741824(
; CHECK-NEXT: [[AND:%.*]] = and i8 [[X:%.*]], 8
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i8 [[AND]], 0
; CHECK-NEXT: [[OR:%.*]] = or i32 [[Y:%.*]], 1073741824
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP_NOT]], i32 [[OR]], i32 [[Y]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i8 %x, 8
%cmp = icmp ne i8 0, %and
%or = or i32 %y, 1073741824
%select = select i1 %cmp, i32 %y, i32 %or
ret i32 %select
}
define i32 @select_icmp_ne_0_and_8_xor_1073741824(i8 %x, i32 %y) {
; CHECK-LABEL: @select_icmp_ne_0_and_8_xor_1073741824(
; CHECK-NEXT: [[AND:%.*]] = and i8 [[X:%.*]], 8
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i8 [[AND]], 0
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[Y:%.*]], 1073741824
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP_NOT]], i32 [[XOR]], i32 [[Y]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i8 %x, 8
%cmp = icmp ne i8 0, %and
%xor = xor i32 %y, 1073741824
%select = select i1 %cmp, i32 %y, i32 %xor
ret i32 %select
}
define i32 @select_icmp_ne_0_and_8_and_not_1073741824(i8 %x, i32 %y) {
; CHECK-LABEL: @select_icmp_ne_0_and_8_and_not_1073741824(
; CHECK-NEXT: [[AND:%.*]] = and i8 [[X:%.*]], 8
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i8 [[AND]], 0
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[Y:%.*]], -1073741825
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP_NOT]], i32 [[AND2]], i32 [[Y]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i8 %x, 8
%cmp = icmp ne i8 0, %and
%and2 = and i32 %y, -1073741825
%select = select i1 %cmp, i32 %y, i32 %and2
ret i32 %select
}
; We can't combine here, because the cmp is scalar and the or vector.
; Just make sure we don't assert.
define <2 x i32> @select_icmp_eq_and_1_0_or_vector_of_2s(i32 %x, <2 x i32> %y) {
; CHECK-LABEL: @select_icmp_eq_and_1_0_or_vector_of_2s(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 1
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[OR:%.*]] = or <2 x i32> [[Y:%.*]], <i32 2, i32 2>
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP]], <2 x i32> [[Y]], <2 x i32> [[OR]]
; CHECK-NEXT: ret <2 x i32> [[SELECT]]
;
%and = and i32 %x, 1
%cmp = icmp eq i32 %and, 0
%or = or <2 x i32> %y, <i32 2, i32 2>
%select = select i1 %cmp, <2 x i32> %y, <2 x i32> %or
ret <2 x i32> %select
}
define i32 @select_icmp_and_8_ne_0_xor_8(i32 %x) {
; CHECK-LABEL: @select_icmp_and_8_ne_0_xor_8(
; CHECK-NEXT: [[X_XOR:%.*]] = and i32 [[X:%.*]], -9
; CHECK-NEXT: ret i32 [[X_XOR]]
;
%and = and i32 %x, 8
%cmp = icmp eq i32 %and, 0
%xor = xor i32 %x, 8
%x.xor = select i1 %cmp, i32 %x, i32 %xor
ret i32 %x.xor
}
define i32 @select_icmp_and_8_eq_0_xor_8(i32 %x) {
; CHECK-LABEL: @select_icmp_and_8_eq_0_xor_8(
; CHECK-NEXT: [[XOR_X:%.*]] = or i32 [[X:%.*]], 8
; CHECK-NEXT: ret i32 [[XOR_X]]
;
%and = and i32 %x, 8
%cmp = icmp eq i32 %and, 0
%xor = xor i32 %x, 8
%xor.x = select i1 %cmp, i32 %xor, i32 %x
ret i32 %xor.x
}
define i64 @select_icmp_x_and_8_eq_0_y_xor_8(i32 %x, i64 %y) {
; CHECK-LABEL: @select_icmp_x_and_8_eq_0_y_xor_8(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 8
; CHECK-NEXT: [[TMP1:%.*]] = zext nneg i32 [[AND]] to i64
; CHECK-NEXT: [[Y_XOR:%.*]] = xor i64 [[TMP1]], [[Y:%.*]]
; CHECK-NEXT: ret i64 [[Y_XOR]]
;
%and = and i32 %x, 8
%cmp = icmp eq i32 %and, 0
%xor = xor i64 %y, 8
%y.xor = select i1 %cmp, i64 %y, i64 %xor
ret i64 %y.xor
}
define i64 @select_icmp_x_and_8_ne_0_y_xor_8(i32 %x, i64 %y) {
; CHECK-LABEL: @select_icmp_x_and_8_ne_0_y_xor_8(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 8
; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[AND]], 8
; CHECK-NEXT: [[TMP2:%.*]] = zext nneg i32 [[TMP1]] to i64
; CHECK-NEXT: [[XOR_Y:%.*]] = xor i64 [[TMP2]], [[Y:%.*]]
; CHECK-NEXT: ret i64 [[XOR_Y]]
;
%and = and i32 %x, 8
%cmp = icmp eq i32 %and, 0
%xor = xor i64 %y, 8
%xor.y = select i1 %cmp, i64 %xor, i64 %y
ret i64 %xor.y
}
define i64 @select_icmp_x_and_8_ne_0_y_or_8(i32 %x, i64 %y) {
; CHECK-LABEL: @select_icmp_x_and_8_ne_0_y_or_8(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 8
; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[AND]], 8
; CHECK-NEXT: [[TMP2:%.*]] = zext nneg i32 [[TMP1]] to i64
; CHECK-NEXT: [[OR_Y:%.*]] = or i64 [[TMP2]], [[Y:%.*]]
; CHECK-NEXT: ret i64 [[OR_Y]]
;
%and = and i32 %x, 8
%cmp = icmp eq i32 %and, 0
%or = or i64 %y, 8
%or.y = select i1 %cmp, i64 %or, i64 %y
ret i64 %or.y
}
define <2 x i64> @select_icmp_x_and_8_ne_0_y_or_8_vec(<2 x i32> %x, <2 x i64> %y) {
; CHECK-LABEL: @select_icmp_x_and_8_ne_0_y_or_8_vec(
; CHECK-NEXT: [[AND:%.*]] = and <2 x i32> [[X:%.*]], <i32 8, i32 8>
; CHECK-NEXT: [[TMP1:%.*]] = xor <2 x i32> [[AND]], <i32 8, i32 8>
; CHECK-NEXT: [[TMP2:%.*]] = zext nneg <2 x i32> [[TMP1]] to <2 x i64>
; CHECK-NEXT: [[OR_Y:%.*]] = or <2 x i64> [[TMP2]], [[Y:%.*]]
; CHECK-NEXT: ret <2 x i64> [[OR_Y]]
;
%and = and <2 x i32> %x, <i32 8, i32 8>
%cmp = icmp eq <2 x i32> %and, zeroinitializer
%or = or <2 x i64> %y, <i64 8, i64 8>
%or.y = select <2 x i1> %cmp, <2 x i64> %or, <2 x i64> %y
ret <2 x i64> %or.y
}
define i64 @select_icmp_x_and_8_ne_0_y_and_not_8(i32 %x, i64 %y) {
; CHECK-LABEL: @select_icmp_x_and_8_ne_0_y_and_not_8(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 8
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[AND2:%.*]] = and i64 [[Y:%.*]], -9
; CHECK-NEXT: [[AND_Y:%.*]] = select i1 [[CMP]], i64 [[AND2]], i64 [[Y]]
; CHECK-NEXT: ret i64 [[AND_Y]]
;
%and = and i32 %x, 8
%cmp = icmp eq i32 %and, 0
%and2 = and i64 %y, -9
%and.y = select i1 %cmp, i64 %and2, i64 %y
ret i64 %and.y
}
define i32 @select_icmp_and_2147483648_ne_0_xor_2147483648(i32 %x) {
; CHECK-LABEL: @select_icmp_and_2147483648_ne_0_xor_2147483648(
; CHECK-NEXT: [[X_XOR:%.*]] = and i32 [[X:%.*]], 2147483647
; CHECK-NEXT: ret i32 [[X_XOR]]
;
%and = and i32 %x, 2147483648
%cmp = icmp eq i32 %and, 0
%xor = xor i32 %x, 2147483648
%x.xor = select i1 %cmp, i32 %x, i32 %xor
ret i32 %x.xor
}
define i32 @select_icmp_and_2147483648_eq_0_xor_2147483648(i32 %x) {
; CHECK-LABEL: @select_icmp_and_2147483648_eq_0_xor_2147483648(
; CHECK-NEXT: [[XOR_X:%.*]] = or i32 [[X:%.*]], -2147483648
; CHECK-NEXT: ret i32 [[XOR_X]]
;
%and = and i32 %x, 2147483648
%cmp = icmp eq i32 %and, 0
%xor = xor i32 %x, 2147483648
%xor.x = select i1 %cmp, i32 %xor, i32 %x
ret i32 %xor.x
}
define i32 @select_icmp_x_and_2147483648_ne_0_or_2147483648(i32 %x) {
; CHECK-LABEL: @select_icmp_x_and_2147483648_ne_0_or_2147483648(
; CHECK-NEXT: [[OR:%.*]] = or i32 [[X:%.*]], -2147483648
; CHECK-NEXT: ret i32 [[OR]]
;
%and = and i32 %x, 2147483648
%cmp = icmp eq i32 %and, 0
%or = or i32 %x, 2147483648
%or.x = select i1 %cmp, i32 %or, i32 %x
ret i32 %or.x
}
define i32 @test68(i32 %x, i32 %y) {
; CHECK-LABEL: @test68(
; CHECK-NEXT: [[AND:%.*]] = lshr i32 [[X:%.*]], 6
; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[AND]], 2
; CHECK-NEXT: [[SELECT:%.*]] = or i32 [[TMP1]], [[Y:%.*]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i32 %x, 128
%cmp = icmp eq i32 %and, 0
%or = or i32 %y, 2
%select = select i1 %cmp, i32 %y, i32 %or
ret i32 %select
}
define <2 x i32> @test68vec(<2 x i32> %x, <2 x i32> %y) {
; CHECK-LABEL: @test68vec(
; CHECK-NEXT: [[AND:%.*]] = lshr <2 x i32> [[X:%.*]], <i32 6, i32 6>
; CHECK-NEXT: [[TMP1:%.*]] = and <2 x i32> [[AND]], <i32 2, i32 2>
; CHECK-NEXT: [[SELECT:%.*]] = or <2 x i32> [[TMP1]], [[Y:%.*]]
; CHECK-NEXT: ret <2 x i32> [[SELECT]]
;
%and = and <2 x i32> %x, <i32 128, i32 128>
%cmp = icmp eq <2 x i32> %and, zeroinitializer
%or = or <2 x i32> %y, <i32 2, i32 2>
%select = select <2 x i1> %cmp, <2 x i32> %y, <2 x i32> %or
ret <2 x i32> %select
}
define i32 @test68_xor(i32 %x, i32 %y) {
; CHECK-LABEL: @test68_xor(
; CHECK-NEXT: [[AND:%.*]] = lshr i32 [[X:%.*]], 6
; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[AND]], 2
; CHECK-NEXT: [[SELECT:%.*]] = xor i32 [[TMP1]], [[Y:%.*]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i32 %x, 128
%cmp = icmp eq i32 %and, 0
%xor = xor i32 %y, 2
%select = select i1 %cmp, i32 %y, i32 %xor
ret i32 %select
}
define i32 @test68_and(i32 %x, i32 %y) {
; CHECK-LABEL: @test68_and(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 128
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[Y:%.*]], -3
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP]], i32 [[Y]], i32 [[AND2]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i32 %x, 128
%cmp = icmp eq i32 %and, 0
%and2 = and i32 %y, -3
%select = select i1 %cmp, i32 %y, i32 %and2
ret i32 %select
}
define i32 @test69(i32 %x, i32 %y) {
; CHECK-LABEL: @test69(
; CHECK-NEXT: [[AND:%.*]] = lshr i32 [[X:%.*]], 6
; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[AND]], 2
; CHECK-NEXT: [[TMP2:%.*]] = xor i32 [[TMP1]], 2
; CHECK-NEXT: [[SELECT:%.*]] = or i32 [[TMP2]], [[Y:%.*]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i32 %x, 128
%cmp = icmp ne i32 %and, 0
%or = or i32 %y, 2
%select = select i1 %cmp, i32 %y, i32 %or
ret i32 %select
}
define <2 x i32> @test69vec(<2 x i32> %x, <2 x i32> %y) {
; CHECK-LABEL: @test69vec(
; CHECK-NEXT: [[AND:%.*]] = lshr <2 x i32> [[X:%.*]], <i32 6, i32 6>
; CHECK-NEXT: [[TMP1:%.*]] = and <2 x i32> [[AND]], <i32 2, i32 2>
; CHECK-NEXT: [[TMP2:%.*]] = xor <2 x i32> [[TMP1]], <i32 2, i32 2>
; CHECK-NEXT: [[SELECT:%.*]] = or <2 x i32> [[TMP2]], [[Y:%.*]]
; CHECK-NEXT: ret <2 x i32> [[SELECT]]
;
%and = and <2 x i32> %x, <i32 128, i32 128>
%cmp = icmp ne <2 x i32> %and, zeroinitializer
%or = or <2 x i32> %y, <i32 2, i32 2>
%select = select <2 x i1> %cmp, <2 x i32> %y, <2 x i32> %or
ret <2 x i32> %select
}
define i32 @test69_xor(i32 %x, i32 %y) {
; CHECK-LABEL: @test69_xor(
; CHECK-NEXT: [[AND:%.*]] = lshr i32 [[X:%.*]], 6
; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[AND]], 2
; CHECK-NEXT: [[TMP2:%.*]] = xor i32 [[TMP1]], [[Y:%.*]]
; CHECK-NEXT: [[SELECT:%.*]] = xor i32 [[TMP2]], 2
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i32 %x, 128
%cmp = icmp ne i32 %and, 0
%xor = xor i32 %y, 2
%select = select i1 %cmp, i32 %y, i32 %xor
ret i32 %select
}
define i32 @test69_and(i32 %x, i32 %y) {
; CHECK-LABEL: @test69_and(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 128
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[Y:%.*]], 2
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP_NOT]], i32 [[AND2]], i32 [[Y]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i32 %x, 128
%cmp = icmp ne i32 %and, 0
%and2 = and i32 %y, 2
%select = select i1 %cmp, i32 %y, i32 %and2
ret i32 %select
}
define i8 @test70(i8 %x, i8 %y) {
; CHECK-LABEL: @test70(
; CHECK-NEXT: [[TMP1:%.*]] = lshr i8 [[X:%.*]], 6
; CHECK-NEXT: [[TMP2:%.*]] = and i8 [[TMP1]], 2
; CHECK-NEXT: [[SELECT:%.*]] = or i8 [[TMP2]], [[Y:%.*]]
; CHECK-NEXT: ret i8 [[SELECT]]
;
%cmp = icmp slt i8 %x, 0
%or = or i8 %y, 2
%select = select i1 %cmp, i8 %or, i8 %y
ret i8 %select
}
define i8 @test70_multiuse(i8 %x, i8 %y) {
; CHECK-LABEL: @test70_multiuse(
; CHECK-NEXT: [[CMP:%.*]] = icmp slt i8 [[X:%.*]], 0
; CHECK-NEXT: [[OR:%.*]] = or i8 [[Y:%.*]], 2
; CHECK-NEXT: call void @use(i8 [[OR]])
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP]], i8 [[OR]], i8 [[Y]]
; CHECK-NEXT: ret i8 [[SELECT]]
;
%cmp = icmp slt i8 %x, 0
%or = or i8 %y, 2
call void @use(i8 %or)
%select = select i1 %cmp, i8 %or, i8 %y
ret i8 %select
}
define i32 @shift_no_xor_multiuse_or(i32 %x, i32 %y) {
; CHECK-LABEL: @shift_no_xor_multiuse_or(
; CHECK-NEXT: [[OR:%.*]] = or i32 [[Y:%.*]], 2
; CHECK-NEXT: [[AND:%.*]] = shl i32 [[X:%.*]], 1
; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[AND]], 2
; CHECK-NEXT: [[SELECT:%.*]] = or i32 [[TMP1]], [[Y]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[OR]]
; CHECK-NEXT: ret i32 [[RES]]
;
%and = and i32 %x, 1
%cmp = icmp eq i32 %and, 0
%or = or i32 %y, 2
%select = select i1 %cmp, i32 %y, i32 %or
%res = mul i32 %select, %or ; to bump up use count of the Or
ret i32 %res
}
define i32 @shift_no_xor_multiuse_xor(i32 %x, i32 %y) {
; CHECK-LABEL: @shift_no_xor_multiuse_xor(
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[Y:%.*]], 2
; CHECK-NEXT: [[AND:%.*]] = shl i32 [[X:%.*]], 1
; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[AND]], 2
; CHECK-NEXT: [[SELECT:%.*]] = xor i32 [[TMP1]], [[Y]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[XOR]]
; CHECK-NEXT: ret i32 [[RES]]
;
%and = and i32 %x, 1
%cmp = icmp eq i32 %and, 0
%xor = xor i32 %y, 2
%select = select i1 %cmp, i32 %y, i32 %xor
%res = mul i32 %select, %xor ; to bump up use count of the Xor
ret i32 %res
}
define i32 @shift_no_xor_multiuse_and(i32 %x, i32 %y) {
; CHECK-LABEL: @shift_no_xor_multiuse_and(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 1
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[Y:%.*]], -3
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP]], i32 [[Y]], i32 [[AND2]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[AND2]]
; CHECK-NEXT: ret i32 [[RES]]
;
%and = and i32 %x, 1
%cmp = icmp eq i32 %and, 0
%and2 = and i32 %y, -3
%select = select i1 %cmp, i32 %y, i32 %and2
%res = mul i32 %select, %and2 ; to bump up use count of the And
ret i32 %res
}
define i32 @no_shift_no_xor_multiuse_or(i32 %x, i32 %y) {
; CHECK-LABEL: @no_shift_no_xor_multiuse_or(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[OR:%.*]] = or i32 [[Y:%.*]], 4096
; CHECK-NEXT: [[SELECT:%.*]] = or i32 [[AND]], [[Y]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[OR]]
; CHECK-NEXT: ret i32 [[RES]]
;
%and = and i32 %x, 4096
%cmp = icmp eq i32 %and, 0
%or = or i32 %y, 4096
%select = select i1 %cmp, i32 %y, i32 %or
%res = mul i32 %select, %or ; to bump up use count of the Or
ret i32 %res
}
define i32 @no_shift_no_xor_multiuse_xor(i32 %x, i32 %y) {
; CHECK-LABEL: @no_shift_no_xor_multiuse_xor(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[Y:%.*]], 4096
; CHECK-NEXT: [[SELECT:%.*]] = xor i32 [[AND]], [[Y]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[XOR]]
; CHECK-NEXT: ret i32 [[RES]]
;
%and = and i32 %x, 4096
%cmp = icmp eq i32 %and, 0
%xor = xor i32 %y, 4096
%select = select i1 %cmp, i32 %y, i32 %xor
%res = mul i32 %select, %xor ; to bump up use count of the Xor
ret i32 %res
}
define i32 @no_shift_no_xor_multiuse_and(i32 %x, i32 %y) {
; CHECK-LABEL: @no_shift_no_xor_multiuse_and(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[AND2:%.*]] = add i32 [[Y:%.*]], -4097
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP]], i32 [[Y]], i32 [[AND2]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[AND2]]
; CHECK-NEXT: ret i32 [[RES]]
;
%and = and i32 %x, 4096
%cmp = icmp eq i32 %and, 0
%and2 = add i32 %y, -4097
%select = select i1 %cmp, i32 %y, i32 %and2
%res = mul i32 %select, %and2 ; to bump up use count of the And
ret i32 %res
}
define i32 @no_shift_xor_multiuse_or(i32 %x, i32 %y) {
; CHECK-LABEL: @no_shift_xor_multiuse_or(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[OR:%.*]] = or i32 [[Y:%.*]], 4096
; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[AND]], 4096
; CHECK-NEXT: [[SELECT:%.*]] = or i32 [[TMP1]], [[Y]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[OR]]
; CHECK-NEXT: ret i32 [[RES]]
;
%and = and i32 %x, 4096
%cmp = icmp ne i32 0, %and
%or = or i32 %y, 4096
%select = select i1 %cmp, i32 %y, i32 %or
%res = mul i32 %select, %or ; to bump up use count of the Or
ret i32 %res
}
define i32 @no_shift_xor_multiuse_xor(i32 %x, i32 %y) {
; CHECK-LABEL: @no_shift_xor_multiuse_xor(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[Y:%.*]], 4096
; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[AND]], [[Y]]
; CHECK-NEXT: [[SELECT:%.*]] = xor i32 [[TMP1]], 4096
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[XOR]]
; CHECK-NEXT: ret i32 [[RES]]
;
%and = and i32 %x, 4096
%cmp = icmp ne i32 0, %and
%xor = xor i32 %y, 4096
%select = select i1 %cmp, i32 %y, i32 %xor
%res = mul i32 %select, %xor ; to bump up use count of the Xor
ret i32 %res
}
define i32 @no_shift_xor_multiuse_and(i32 %x, i32 %y) {
; CHECK-LABEL: @no_shift_xor_multiuse_and(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[Y:%.*]], -4097
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP_NOT]], i32 [[AND2]], i32 [[Y]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[AND2]]
; CHECK-NEXT: ret i32 [[RES]]
;
%and = and i32 %x, 4096
%cmp = icmp ne i32 0, %and
%and2 = and i32 %y, -4097
%select = select i1 %cmp, i32 %y, i32 %and2
%res = mul i32 %select, %and2 ; to bump up use count of the And
ret i32 %res
}
define i32 @shift_xor_multiuse_or(i32 %x, i32 %y) {
; CHECK-LABEL: @shift_xor_multiuse_or(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[OR:%.*]] = or i32 [[Y:%.*]], 2048
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP_NOT]], i32 [[OR]], i32 [[Y]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[OR]]
; CHECK-NEXT: ret i32 [[RES]]
;
%and = and i32 %x, 4096
%cmp = icmp ne i32 0, %and
%or = or i32 %y, 2048
%select = select i1 %cmp, i32 %y, i32 %or
%res = mul i32 %select, %or ; to bump up use count of the Or
ret i32 %res
}
define i32 @shift_xor_multiuse_xor(i32 %x, i32 %y) {
; CHECK-LABEL: @shift_xor_multiuse_xor(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[Y:%.*]], 2048
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP_NOT]], i32 [[XOR]], i32 [[Y]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[XOR]]
; CHECK-NEXT: ret i32 [[RES]]
;
%and = and i32 %x, 4096
%cmp = icmp ne i32 0, %and
%xor = xor i32 %y, 2048
%select = select i1 %cmp, i32 %y, i32 %xor
%res = mul i32 %select, %xor ; to bump up use count of the Xor
ret i32 %res
}
define i32 @shift_xor_multiuse_and(i32 %x, i32 %y) {
; CHECK-LABEL: @shift_xor_multiuse_and(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[Y:%.*]], -2049
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP_NOT]], i32 [[AND2]], i32 [[Y]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[AND2]]
; CHECK-NEXT: ret i32 [[RES]]
;
%and = and i32 %x, 4096
%cmp = icmp ne i32 0, %and
%and2 = and i32 %y, -2049
%select = select i1 %cmp, i32 %y, i32 %and2
%res = mul i32 %select, %and2 ; to bump up use count of the and
ret i32 %res
}
define i32 @shift_no_xor_multiuse_cmp(i32 %x, i32 %y, i32 %z, i32 %w) {
; CHECK-LABEL: @shift_no_xor_multiuse_cmp(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 1
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[TMP1:%.*]] = shl nuw nsw i32 [[AND]], 1
; CHECK-NEXT: [[SELECT:%.*]] = or i32 [[TMP1]], [[Y:%.*]]
; CHECK-NEXT: [[SELECT2:%.*]] = select i1 [[CMP]], i32 [[Z:%.*]], i32 [[W:%.*]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[SELECT2]]
; CHECK-NEXT: ret i32 [[RES]]
;
%and = and i32 %x, 1
%cmp = icmp eq i32 %and, 0
%or = or i32 %y, 2
%select = select i1 %cmp, i32 %y, i32 %or
%select2 = select i1 %cmp, i32 %z, i32 %w ; to bump up use count of the cmp
%res = mul i32 %select, %select2
ret i32 %res
}
define i32 @shift_no_xor_multiuse_cmp_with_xor(i32 %x, i32 %y, i32 %z, i32 %w) {
; CHECK-LABEL: @shift_no_xor_multiuse_cmp_with_xor(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 1
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[TMP1:%.*]] = shl nuw nsw i32 [[AND]], 1
; CHECK-NEXT: [[SELECT:%.*]] = xor i32 [[TMP1]], [[Y:%.*]]
; CHECK-NEXT: [[SELECT2:%.*]] = select i1 [[CMP]], i32 [[Z:%.*]], i32 [[W:%.*]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[SELECT2]]
; CHECK-NEXT: ret i32 [[RES]]
;
%and = and i32 %x, 1
%cmp = icmp eq i32 %and, 0
%xor = xor i32 %y, 2
%select = select i1 %cmp, i32 %y, i32 %xor
%select2 = select i1 %cmp, i32 %z, i32 %w ; to bump up use count of the cmp
%res = mul i32 %select, %select2
ret i32 %res
}
define i32 @shift_no_xor_multiuse_cmp_with_and(i32 %x, i32 %y, i32 %z, i32 %w) {
; CHECK-LABEL: @shift_no_xor_multiuse_cmp_with_and(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 1
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[Y:%.*]], -3
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP]], i32 [[Y]], i32 [[AND2]]
; CHECK-NEXT: [[SELECT2:%.*]] = select i1 [[CMP]], i32 [[Z:%.*]], i32 [[W:%.*]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[SELECT2]]
; CHECK-NEXT: ret i32 [[RES]]
;
%and = and i32 %x, 1
%cmp = icmp eq i32 %and, 0
%and2 = and i32 %y, -3
%select = select i1 %cmp, i32 %y, i32 %and2
%select2 = select i1 %cmp, i32 %z, i32 %w ; to bump up use count of the cmp
%res = mul i32 %select, %select2
ret i32 %res
}
define i32 @no_shift_no_xor_multiuse_cmp(i32 %x, i32 %y, i32 %z, i32 %w) {
; CHECK-LABEL: @no_shift_no_xor_multiuse_cmp(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[SELECT:%.*]] = or i32 [[AND]], [[Y:%.*]]
; CHECK-NEXT: [[SELECT2:%.*]] = select i1 [[CMP]], i32 [[Z:%.*]], i32 [[W:%.*]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[SELECT2]]
; CHECK-NEXT: ret i32 [[RES]]
;
%and = and i32 %x, 4096
%cmp = icmp eq i32 %and, 0
%or = or i32 %y, 4096
%select = select i1 %cmp, i32 %y, i32 %or
%select2 = select i1 %cmp, i32 %z, i32 %w ; to bump up use count of the cmp
%res = mul i32 %select, %select2
ret i32 %res
}
define i32 @no_shift_no_xor_multiuse_cmp_with_xor(i32 %x, i32 %y, i32 %z, i32 %w) {
; CHECK-LABEL: @no_shift_no_xor_multiuse_cmp_with_xor(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[SELECT:%.*]] = xor i32 [[AND]], [[Y:%.*]]
; CHECK-NEXT: [[SELECT2:%.*]] = select i1 [[CMP]], i32 [[Z:%.*]], i32 [[W:%.*]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[SELECT2]]
; CHECK-NEXT: ret i32 [[RES]]
;
%and = and i32 %x, 4096
%cmp = icmp eq i32 %and, 0
%xor = xor i32 %y, 4096
%select = select i1 %cmp, i32 %y, i32 %xor
%select2 = select i1 %cmp, i32 %z, i32 %w ; to bump up use count of the cmp
%res = mul i32 %select, %select2
ret i32 %res
}
define i32 @no_shift_no_xor_multiuse_cmp_with_and(i32 %x, i32 %y, i32 %z, i32 %w) {
; CHECK-LABEL: @no_shift_no_xor_multiuse_cmp_with_and(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[Y:%.*]], -4097
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP]], i32 [[Y]], i32 [[AND2]]
; CHECK-NEXT: [[SELECT2:%.*]] = select i1 [[CMP]], i32 [[Z:%.*]], i32 [[W:%.*]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[SELECT2]]
; CHECK-NEXT: ret i32 [[RES]]
;
%and = and i32 %x, 4096
%cmp = icmp eq i32 %and, 0
%and2 = and i32 %y, -4097
%select = select i1 %cmp, i32 %y, i32 %and2
%select2 = select i1 %cmp, i32 %z, i32 %w ; to bump up use count of the cmp
%res = mul i32 %select, %select2
ret i32 %res
}
define i32 @no_shift_xor_multiuse_cmp(i32 %x, i32 %y, i32 %z, i32 %w) {
; CHECK-LABEL: @no_shift_xor_multiuse_cmp(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[AND]], 4096
; CHECK-NEXT: [[SELECT:%.*]] = or i32 [[TMP1]], [[Y:%.*]]
; CHECK-NEXT: [[SELECT2:%.*]] = select i1 [[CMP_NOT]], i32 [[W:%.*]], i32 [[Z:%.*]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[SELECT2]]
; CHECK-NEXT: ret i32 [[RES]]
;
%and = and i32 %x, 4096
%cmp = icmp ne i32 0, %and
%or = or i32 %y, 4096
%select = select i1 %cmp, i32 %y, i32 %or
%select2 = select i1 %cmp, i32 %z, i32 %w ; to bump up use count of the cmp
%res = mul i32 %select, %select2
ret i32 %res
}
define i32 @no_shift_xor_multiuse_cmp_with_xor(i32 %x, i32 %y, i32 %z, i32 %w) {
; CHECK-LABEL: @no_shift_xor_multiuse_cmp_with_xor(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[AND]], [[Y:%.*]]
; CHECK-NEXT: [[SELECT:%.*]] = xor i32 [[TMP1]], 4096
; CHECK-NEXT: [[SELECT2:%.*]] = select i1 [[CMP_NOT]], i32 [[W:%.*]], i32 [[Z:%.*]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[SELECT2]]
; CHECK-NEXT: ret i32 [[RES]]
;
%and = and i32 %x, 4096
%cmp = icmp ne i32 0, %and
%xor = xor i32 %y, 4096
%select = select i1 %cmp, i32 %y, i32 %xor
%select2 = select i1 %cmp, i32 %z, i32 %w ; to bump up use count of the cmp
%res = mul i32 %select, %select2
ret i32 %res
}
define i32 @no_shift_xor_multiuse_cmp_with_and(i32 %x, i32 %y, i32 %z, i32 %w) {
; CHECK-LABEL: @no_shift_xor_multiuse_cmp_with_and(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[Y:%.*]], -4097
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP_NOT]], i32 [[AND2]], i32 [[Y]]
; CHECK-NEXT: [[SELECT2:%.*]] = select i1 [[CMP_NOT]], i32 [[W:%.*]], i32 [[Z:%.*]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[SELECT2]]
; CHECK-NEXT: ret i32 [[RES]]
;
%and = and i32 %x, 4096
%cmp = icmp ne i32 0, %and
%and2 = and i32 %y, -4097
%select = select i1 %cmp, i32 %y, i32 %and2
%select2 = select i1 %cmp, i32 %z, i32 %w ; to bump up use count of the cmp
%res = mul i32 %select, %select2
ret i32 %res
}
define i32 @shift_xor_multiuse_cmp(i32 %x, i32 %y, i32 %z, i32 %w) {
; CHECK-LABEL: @shift_xor_multiuse_cmp(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[OR:%.*]] = or i32 [[Y:%.*]], 2048
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP_NOT]], i32 [[OR]], i32 [[Y]]
; CHECK-NEXT: [[SELECT2:%.*]] = select i1 [[CMP_NOT]], i32 [[W:%.*]], i32 [[Z:%.*]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[SELECT2]]
; CHECK-NEXT: ret i32 [[RES]]
;
%and = and i32 %x, 4096
%cmp = icmp ne i32 0, %and
%or = or i32 %y, 2048
%select = select i1 %cmp, i32 %y, i32 %or
%select2 = select i1 %cmp, i32 %z, i32 %w ; to bump up use count of the cmp
%res = mul i32 %select, %select2
ret i32 %res
}
define i32 @shift_xor_multiuse_cmp_with_xor(i32 %x, i32 %y, i32 %z, i32 %w) {
; CHECK-LABEL: @shift_xor_multiuse_cmp_with_xor(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[Y:%.*]], 2048
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP_NOT]], i32 [[XOR]], i32 [[Y]]
; CHECK-NEXT: [[SELECT2:%.*]] = select i1 [[CMP_NOT]], i32 [[W:%.*]], i32 [[Z:%.*]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[SELECT2]]
; CHECK-NEXT: ret i32 [[RES]]
;
%and = and i32 %x, 4096
%cmp = icmp ne i32 0, %and
%xor = xor i32 %y, 2048
%select = select i1 %cmp, i32 %y, i32 %xor
%select2 = select i1 %cmp, i32 %z, i32 %w ; to bump up use count of the cmp
%res = mul i32 %select, %select2
ret i32 %res
}
define i32 @shift_xor_multiuse_cmp_with_and(i32 %x, i32 %y, i32 %z, i32 %w) {
; CHECK-LABEL: @shift_xor_multiuse_cmp_with_and(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[Y:%.*]], -2049
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP_NOT]], i32 [[AND2]], i32 [[Y]]
; CHECK-NEXT: [[SELECT2:%.*]] = select i1 [[CMP_NOT]], i32 [[W:%.*]], i32 [[Z:%.*]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[SELECT2]]
; CHECK-NEXT: ret i32 [[RES]]
;
%and = and i32 %x, 4096
%cmp = icmp ne i32 0, %and
%and2 = and i32 %y, -2049
%select = select i1 %cmp, i32 %y, i32 %and2
%select2 = select i1 %cmp, i32 %z, i32 %w ; to bump up use count of the cmp
%res = mul i32 %select, %select2
ret i32 %res
}
define i32 @shift_no_xor_multiuse_cmp_or(i32 %x, i32 %y, i32 %z, i32 %w) {
; CHECK-LABEL: @shift_no_xor_multiuse_cmp_or(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 1
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[OR:%.*]] = or i32 [[Y:%.*]], 2
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP]], i32 [[Y]], i32 [[OR]]
; CHECK-NEXT: [[SELECT2:%.*]] = select i1 [[CMP]], i32 [[Z:%.*]], i32 [[W:%.*]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[SELECT2]]
; CHECK-NEXT: [[RES2:%.*]] = mul i32 [[RES]], [[OR]]
; CHECK-NEXT: ret i32 [[RES2]]
;
%and = and i32 %x, 1
%cmp = icmp eq i32 %and, 0
%or = or i32 %y, 2
%select = select i1 %cmp, i32 %y, i32 %or
%select2 = select i1 %cmp, i32 %z, i32 %w ; to bump up use count of the cmp
%res = mul i32 %select, %select2
%res2 = mul i32 %res, %or ; to bump up the use count of the or
ret i32 %res2
}
define i32 @shift_no_xor_multiuse_cmp_xor(i32 %x, i32 %y, i32 %z, i32 %w) {
; CHECK-LABEL: @shift_no_xor_multiuse_cmp_xor(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 1
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[Y:%.*]], 2
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP]], i32 [[Y]], i32 [[XOR]]
; CHECK-NEXT: [[SELECT2:%.*]] = select i1 [[CMP]], i32 [[Z:%.*]], i32 [[W:%.*]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[SELECT2]]
; CHECK-NEXT: [[RES2:%.*]] = mul i32 [[RES]], [[XOR]]
; CHECK-NEXT: ret i32 [[RES2]]
;
%and = and i32 %x, 1
%cmp = icmp eq i32 %and, 0
%xor = xor i32 %y, 2
%select = select i1 %cmp, i32 %y, i32 %xor
%select2 = select i1 %cmp, i32 %z, i32 %w ; to bump up use count of the cmp
%res = mul i32 %select, %select2
%res2 = mul i32 %res, %xor ; to bump up the use count of the xor
ret i32 %res2
}
define i32 @shift_no_xor_multiuse_cmp_and(i32 %x, i32 %y, i32 %z, i32 %w) {
; CHECK-LABEL: @shift_no_xor_multiuse_cmp_and(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 1
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[Y:%.*]], -3
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP]], i32 [[Y]], i32 [[AND2]]
; CHECK-NEXT: [[SELECT2:%.*]] = select i1 [[CMP]], i32 [[Z:%.*]], i32 [[W:%.*]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[SELECT2]]
; CHECK-NEXT: [[RES2:%.*]] = mul i32 [[RES]], [[AND2]]
; CHECK-NEXT: ret i32 [[RES2]]
;
%and = and i32 %x, 1
%cmp = icmp eq i32 %and, 0
%and2 = and i32 %y, -3
%select = select i1 %cmp, i32 %y, i32 %and2
%select2 = select i1 %cmp, i32 %z, i32 %w ; to bump up use count of the cmp
%res = mul i32 %select, %select2
%res2 = mul i32 %res, %and2 ; to bump up the use count of the and
ret i32 %res2
}
define i32 @no_shift_no_xor_multiuse_cmp_or(i32 %x, i32 %y, i32 %z, i32 %w) {
; CHECK-LABEL: @no_shift_no_xor_multiuse_cmp_or(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[OR:%.*]] = or i32 [[Y:%.*]], 4096
; CHECK-NEXT: [[SELECT:%.*]] = or i32 [[AND]], [[Y]]
; CHECK-NEXT: [[SELECT2:%.*]] = select i1 [[CMP]], i32 [[Z:%.*]], i32 [[W:%.*]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[SELECT2]]
; CHECK-NEXT: [[RES2:%.*]] = mul i32 [[RES]], [[OR]]
; CHECK-NEXT: ret i32 [[RES2]]
;
%and = and i32 %x, 4096
%cmp = icmp eq i32 %and, 0
%or = or i32 %y, 4096
%select = select i1 %cmp, i32 %y, i32 %or
%select2 = select i1 %cmp, i32 %z, i32 %w ; to bump up use count of the cmp
%res = mul i32 %select, %select2
%res2 = mul i32 %res, %or ; to bump up the use count of the or
ret i32 %res2
}
define i32 @no_shift_no_xor_multiuse_cmp_xor(i32 %x, i32 %y, i32 %z, i32 %w) {
; CHECK-LABEL: @no_shift_no_xor_multiuse_cmp_xor(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[Y:%.*]], 4096
; CHECK-NEXT: [[SELECT:%.*]] = xor i32 [[AND]], [[Y]]
; CHECK-NEXT: [[SELECT2:%.*]] = select i1 [[CMP]], i32 [[Z:%.*]], i32 [[W:%.*]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[SELECT2]]
; CHECK-NEXT: [[RES2:%.*]] = mul i32 [[RES]], [[XOR]]
; CHECK-NEXT: ret i32 [[RES2]]
;
%and = and i32 %x, 4096
%cmp = icmp eq i32 %and, 0
%xor = xor i32 %y, 4096
%select = select i1 %cmp, i32 %y, i32 %xor
%select2 = select i1 %cmp, i32 %z, i32 %w ; to bump up use count of the cmp
%res = mul i32 %select, %select2
%res2 = mul i32 %res, %xor ; to bump up the use count of the xor
ret i32 %res2
}
define i32 @no_shift_no_xor_multiuse_cmp_and(i32 %x, i32 %y, i32 %z, i32 %w) {
; CHECK-LABEL: @no_shift_no_xor_multiuse_cmp_and(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[Y:%.*]], -4097
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP]], i32 [[Y]], i32 [[AND2]]
; CHECK-NEXT: [[SELECT2:%.*]] = select i1 [[CMP]], i32 [[Z:%.*]], i32 [[W:%.*]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[SELECT2]]
; CHECK-NEXT: [[RES2:%.*]] = mul i32 [[RES]], [[AND2]]
; CHECK-NEXT: ret i32 [[RES2]]
;
%and = and i32 %x, 4096
%cmp = icmp eq i32 %and, 0
%and2 = and i32 %y, -4097
%select = select i1 %cmp, i32 %y, i32 %and2
%select2 = select i1 %cmp, i32 %z, i32 %w ; to bump up use count of the cmp
%res = mul i32 %select, %select2
%res2 = mul i32 %res, %and2 ; to bump up the use count of the and
ret i32 %res2
}
define i32 @no_shift_xor_multiuse_cmp_or(i32 %x, i32 %y, i32 %z, i32 %w) {
; CHECK-LABEL: @no_shift_xor_multiuse_cmp_or(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[OR:%.*]] = or i32 [[Y:%.*]], 4096
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP_NOT]], i32 [[OR]], i32 [[Y]]
; CHECK-NEXT: [[SELECT2:%.*]] = select i1 [[CMP_NOT]], i32 [[W:%.*]], i32 [[Z:%.*]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[SELECT2]]
; CHECK-NEXT: [[RES2:%.*]] = mul i32 [[RES]], [[OR]]
; CHECK-NEXT: ret i32 [[RES2]]
;
%and = and i32 %x, 4096
%cmp = icmp ne i32 0, %and
%or = or i32 %y, 4096
%select = select i1 %cmp, i32 %y, i32 %or
%select2 = select i1 %cmp, i32 %z, i32 %w ; to bump up use count of the cmp
%res = mul i32 %select, %select2
%res2 = mul i32 %res, %or ; to bump up the use count of the or
ret i32 %res2
}
define i32 @no_shift_xor_multiuse_cmp_xor(i32 %x, i32 %y, i32 %z, i32 %w) {
; CHECK-LABEL: @no_shift_xor_multiuse_cmp_xor(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[Y:%.*]], 4096
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP_NOT]], i32 [[XOR]], i32 [[Y]]
; CHECK-NEXT: [[SELECT2:%.*]] = select i1 [[CMP_NOT]], i32 [[W:%.*]], i32 [[Z:%.*]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[SELECT2]]
; CHECK-NEXT: [[RES2:%.*]] = mul i32 [[RES]], [[XOR]]
; CHECK-NEXT: ret i32 [[RES2]]
;
%and = and i32 %x, 4096
%cmp = icmp ne i32 0, %and
%xor = xor i32 %y, 4096
%select = select i1 %cmp, i32 %y, i32 %xor
%select2 = select i1 %cmp, i32 %z, i32 %w ; to bump up use count of the cmp
%res = mul i32 %select, %select2
%res2 = mul i32 %res, %xor ; to bump up the use count of the xor
ret i32 %res2
}
define i32 @no_shift_xor_multiuse_cmp_and(i32 %x, i32 %y, i32 %z, i32 %w) {
; CHECK-LABEL: @no_shift_xor_multiuse_cmp_and(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[Y:%.*]], -4097
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP_NOT]], i32 [[AND2]], i32 [[Y]]
; CHECK-NEXT: [[SELECT2:%.*]] = select i1 [[CMP_NOT]], i32 [[W:%.*]], i32 [[Z:%.*]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[SELECT2]]
; CHECK-NEXT: [[RES2:%.*]] = mul i32 [[RES]], [[AND2]]
; CHECK-NEXT: ret i32 [[RES2]]
;
%and = and i32 %x, 4096
%cmp = icmp ne i32 0, %and
%and2 = and i32 %y, -4097
%select = select i1 %cmp, i32 %y, i32 %and2
%select2 = select i1 %cmp, i32 %z, i32 %w ; to bump up use count of the cmp
%res = mul i32 %select, %select2
%res2 = mul i32 %res, %and2 ; to bump up the use count of the and
ret i32 %res2
}
define i32 @shift_xor_multiuse_cmp_or(i32 %x, i32 %y, i32 %z, i32 %w) {
; CHECK-LABEL: @shift_xor_multiuse_cmp_or(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[OR:%.*]] = or i32 [[Y:%.*]], 2048
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP_NOT]], i32 [[OR]], i32 [[Y]]
; CHECK-NEXT: [[SELECT2:%.*]] = select i1 [[CMP_NOT]], i32 [[W:%.*]], i32 [[Z:%.*]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[SELECT2]]
; CHECK-NEXT: [[RES2:%.*]] = mul i32 [[RES]], [[OR]]
; CHECK-NEXT: ret i32 [[RES2]]
;
%and = and i32 %x, 4096
%cmp = icmp ne i32 0, %and
%or = or i32 %y, 2048
%select = select i1 %cmp, i32 %y, i32 %or
%select2 = select i1 %cmp, i32 %z, i32 %w ; to bump up use count of the cmp
%res = mul i32 %select, %select2
%res2 = mul i32 %res, %or ; to bump up the use count of the or
ret i32 %res2
}
define i32 @shift_xor_multiuse_cmp_xor(i32 %x, i32 %y, i32 %z, i32 %w) {
; CHECK-LABEL: @shift_xor_multiuse_cmp_xor(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[Y:%.*]], 2048
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP_NOT]], i32 [[XOR]], i32 [[Y]]
; CHECK-NEXT: [[SELECT2:%.*]] = select i1 [[CMP_NOT]], i32 [[W:%.*]], i32 [[Z:%.*]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[SELECT2]]
; CHECK-NEXT: [[RES2:%.*]] = mul i32 [[RES]], [[XOR]]
; CHECK-NEXT: ret i32 [[RES2]]
;
%and = and i32 %x, 4096
%cmp = icmp ne i32 0, %and
%xor = xor i32 %y, 2048
%select = select i1 %cmp, i32 %y, i32 %xor
%select2 = select i1 %cmp, i32 %z, i32 %w ; to bump up use count of the cmp
%res = mul i32 %select, %select2
%res2 = mul i32 %res, %xor ; to bump up the use count of the xor
ret i32 %res2
}
define i32 @shift_xor_multiuse_cmp_and(i32 %x, i32 %y, i32 %z, i32 %w) {
; CHECK-LABEL: @shift_xor_multiuse_cmp_and(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 4096
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[Y:%.*]], 2048
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP_NOT]], i32 [[AND2]], i32 [[Y]]
; CHECK-NEXT: [[SELECT2:%.*]] = select i1 [[CMP_NOT]], i32 [[W:%.*]], i32 [[Z:%.*]]
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[SELECT]], [[SELECT2]]
; CHECK-NEXT: [[RES2:%.*]] = mul i32 [[RES]], [[AND2]]
; CHECK-NEXT: ret i32 [[RES2]]
;
%and = and i32 %x, 4096
%cmp = icmp ne i32 0, %and
%and2 = and i32 %y, 2048
%select = select i1 %cmp, i32 %y, i32 %and2
%select2 = select i1 %cmp, i32 %z, i32 %w ; to bump up use count of the cmp
%res = mul i32 %select, %select2
%res2 = mul i32 %res, %and2 ; to bump up the use count of the and
ret i32 %res2
}
define i8 @set_bits(i8 %x, i1 %b) {
; CHECK-LABEL: @set_bits(
; CHECK-NEXT: [[AND:%.*]] = and i8 [[X:%.*]], -6
; CHECK-NEXT: [[MASKSEL:%.*]] = select i1 [[B:%.*]], i8 5, i8 0
; CHECK-NEXT: [[COND:%.*]] = or disjoint i8 [[AND]], [[MASKSEL]]
; CHECK-NEXT: ret i8 [[COND]]
;
%and = and i8 %x, 250
%or = or i8 %x, 5
%cond = select i1 %b, i8 %or, i8 %and
ret i8 %cond
}
; Negative test
define i8 @set_bits_not_inverse_constant(i8 %x, i1 %b) {
; CHECK-LABEL: @set_bits_not_inverse_constant(
; CHECK-NEXT: [[AND:%.*]] = and i8 [[X:%.*]], -6
; CHECK-NEXT: [[OR:%.*]] = or i8 [[X]], 7
; CHECK-NEXT: [[COND:%.*]] = select i1 [[B:%.*]], i8 [[OR]], i8 [[AND]]
; CHECK-NEXT: ret i8 [[COND]]
;
%and = and i8 %x, 250
%or = or i8 %x, 7
%cond = select i1 %b, i8 %or, i8 %and
ret i8 %cond
}
define i8 @set_bits_extra_use1(i8 %x, i1 %b) {
; CHECK-LABEL: @set_bits_extra_use1(
; CHECK-NEXT: [[AND:%.*]] = and i8 [[X:%.*]], -6
; CHECK-NEXT: call void @use(i8 [[AND]])
; CHECK-NEXT: [[MASKSEL:%.*]] = select i1 [[B:%.*]], i8 5, i8 0
; CHECK-NEXT: [[COND:%.*]] = or disjoint i8 [[AND]], [[MASKSEL]]
; CHECK-NEXT: ret i8 [[COND]]
;
%and = and i8 %x, 250
call void @use(i8 %and)
%or = or i8 %x, 5
%cond = select i1 %b, i8 %or, i8 %and
ret i8 %cond
}
; Negative test
define i8 @set_bits_extra_use2(i8 %x, i1 %b) {
; CHECK-LABEL: @set_bits_extra_use2(
; CHECK-NEXT: [[AND:%.*]] = and i8 [[X:%.*]], -6
; CHECK-NEXT: [[OR:%.*]] = or i8 [[X]], 5
; CHECK-NEXT: call void @use(i8 [[OR]])
; CHECK-NEXT: [[COND:%.*]] = select i1 [[B:%.*]], i8 [[OR]], i8 [[AND]]
; CHECK-NEXT: ret i8 [[COND]]
;
%and = and i8 %x, 250
%or = or i8 %x, 5
call void @use(i8 %or)
%cond = select i1 %b, i8 %or, i8 %and
ret i8 %cond
}
define <2 x i8> @clear_bits(<2 x i8> %x, <2 x i1> %b) {
; CHECK-LABEL: @clear_bits(
; CHECK-NEXT: [[AND:%.*]] = and <2 x i8> [[X:%.*]], <i8 37, i8 37>
; CHECK-NEXT: [[MASKSEL:%.*]] = select <2 x i1> [[B:%.*]], <2 x i8> zeroinitializer, <2 x i8> <i8 -38, i8 -38>
; CHECK-NEXT: [[COND:%.*]] = or disjoint <2 x i8> [[AND]], [[MASKSEL]]
; CHECK-NEXT: ret <2 x i8> [[COND]]
;
%and = and <2 x i8> %x, <i8 37, i8 37>
%or = or <2 x i8> %x, <i8 218, i8 218>
%cond = select <2 x i1> %b, <2 x i8> %and, <2 x i8> %or
ret <2 x i8> %cond
}
; Negative test
define <2 x i8> @clear_bits_not_inverse_constant(<2 x i8> %x, <2 x i1> %b) {
; CHECK-LABEL: @clear_bits_not_inverse_constant(
; CHECK-NEXT: [[AND:%.*]] = and <2 x i8> [[X:%.*]], <i8 undef, i8 37>
; CHECK-NEXT: [[OR:%.*]] = or <2 x i8> [[X]], <i8 -38, i8 -38>
; CHECK-NEXT: [[COND:%.*]] = select <2 x i1> [[B:%.*]], <2 x i8> [[AND]], <2 x i8> [[OR]]
; CHECK-NEXT: ret <2 x i8> [[COND]]
;
%and = and <2 x i8> %x, <i8 undef, i8 37>
%or = or <2 x i8> %x, <i8 218, i8 218>
%cond = select <2 x i1> %b, <2 x i8> %and, <2 x i8> %or
ret <2 x i8> %cond
}
define <2 x i8> @clear_bits_extra_use1(<2 x i8> %x, i1 %b) {
; CHECK-LABEL: @clear_bits_extra_use1(
; CHECK-NEXT: [[AND:%.*]] = and <2 x i8> [[X:%.*]], <i8 37, i8 37>
; CHECK-NEXT: call void @use_vec(<2 x i8> [[AND]])
; CHECK-NEXT: [[MASKSEL:%.*]] = select i1 [[B:%.*]], <2 x i8> zeroinitializer, <2 x i8> <i8 -38, i8 -38>
; CHECK-NEXT: [[COND:%.*]] = or disjoint <2 x i8> [[AND]], [[MASKSEL]]
; CHECK-NEXT: ret <2 x i8> [[COND]]
;
%and = and <2 x i8> %x, <i8 37, i8 37>
call void @use_vec(<2 x i8> %and)
%or = or <2 x i8> %x, <i8 218, i8 218>
%cond = select i1 %b, <2 x i8> %and, <2 x i8> %or
ret <2 x i8> %cond
}
; Negative test
define i8 @clear_bits_extra_use2(i8 %x, i1 %b) {
; CHECK-LABEL: @clear_bits_extra_use2(
; CHECK-NEXT: [[AND:%.*]] = and i8 [[X:%.*]], -6
; CHECK-NEXT: [[OR:%.*]] = or i8 [[X]], 5
; CHECK-NEXT: call void @use(i8 [[OR]])
; CHECK-NEXT: [[COND:%.*]] = select i1 [[B:%.*]], i8 [[AND]], i8 [[OR]]
; CHECK-NEXT: ret i8 [[COND]]
;
%and = and i8 %x, 250
%or = or i8 %x, 5
call void @use(i8 %or)
%cond = select i1 %b, i8 %and, i8 %or
ret i8 %cond
}
; Tests factoring in cost of saving the `and`
define i64 @xor_i8_to_i64_shl_save_and_eq(i8 %x, i64 %y) {
; CHECK-LABEL: @xor_i8_to_i64_shl_save_and_eq(
; CHECK-NEXT: [[XX:%.*]] = and i8 [[X:%.*]], 1
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i8 [[XX]], 0
; CHECK-NEXT: [[Z:%.*]] = xor i64 [[Y:%.*]], -9223372036854775808
; CHECK-NEXT: [[R:%.*]] = select i1 [[CMP]], i64 [[Z]], i64 [[Y]]
; CHECK-NEXT: ret i64 [[R]]
;
%xx = and i8 %x, 1
%cmp = icmp eq i8 %xx, 0
%z = xor i64 %y, -9223372036854775808
%r = select i1 %cmp, i64 %z, i64 %y
ret i64 %r
}
define i64 @xor_i8_to_i64_shl_save_and_ne(i8 %x, i64 %y) {
; CHECK-LABEL: @xor_i8_to_i64_shl_save_and_ne(
; CHECK-NEXT: [[TMP1:%.*]] = zext i8 [[X:%.*]] to i64
; CHECK-NEXT: [[TMP2:%.*]] = shl i64 [[TMP1]], 63
; CHECK-NEXT: [[R:%.*]] = xor i64 [[TMP2]], [[Y:%.*]]
; CHECK-NEXT: ret i64 [[R]]
;
%xx = and i8 %x, 1
%cmp = icmp ne i8 %xx, 0
%z = xor i64 %y, -9223372036854775808
%r = select i1 %cmp, i64 %z, i64 %y
ret i64 %r
}
define i32 @select_icmp_eq_and_1_0_srem_2_fail_null_identity(i32 %x, i32 %y) {
; CHECK-LABEL: @select_icmp_eq_and_1_0_srem_2_fail_null_identity(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 1
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[XOR:%.*]] = srem i32 [[Y:%.*]], 2
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP]], i32 [[Y]], i32 [[XOR]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i32 %x, 1
%cmp = icmp eq i32 %and, 0
%xor = srem i32 %y, 2
%select = select i1 %cmp, i32 %y, i32 %xor
ret i32 %select
}
define i32 @select_icmp_eq_and_1_0_sdiv_2_fail_null_1_identity(i32 %x, i32 %y) {
; CHECK-LABEL: @select_icmp_eq_and_1_0_sdiv_2_fail_null_1_identity(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 1
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: [[XOR:%.*]] = sdiv i32 [[Y:%.*]], 2
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[CMP]], i32 [[Y]], i32 [[XOR]]
; CHECK-NEXT: ret i32 [[SELECT]]
;
%and = and i32 %x, 1
%cmp = icmp eq i32 %and, 0
%xor = sdiv i32 %y, 2
%select = select i1 %cmp, i32 %y, i32 %xor
ret i32 %select
}
define i8 @select_icmp_eq_and_1_0_lshr_fv(i8 %x, i8 %y) {
; CHECK-LABEL: @select_icmp_eq_and_1_0_lshr_fv(
; CHECK-NEXT: [[AND:%.*]] = shl i8 [[X:%.*]], 1
; CHECK-NEXT: [[TMP1:%.*]] = and i8 [[AND]], 2
; CHECK-NEXT: [[SELECT:%.*]] = lshr i8 [[Y:%.*]], [[TMP1]]
; CHECK-NEXT: ret i8 [[SELECT]]
;
%and = and i8 %x, 1
%cmp = icmp eq i8 %and, 0
%blshr = lshr i8 %y, 2
%select = select i1 %cmp, i8 %y, i8 %blshr
ret i8 %select
}
define i8 @select_icmp_eq_and_1_0_lshr_tv(i8 %x, i8 %y) {
; CHECK-LABEL: @select_icmp_eq_and_1_0_lshr_tv(
; CHECK-NEXT: [[AND:%.*]] = shl i8 [[X:%.*]], 1
; CHECK-NEXT: [[TMP1:%.*]] = and i8 [[AND]], 2
; CHECK-NEXT: [[SELECT:%.*]] = lshr i8 [[Y:%.*]], [[TMP1]]
; CHECK-NEXT: ret i8 [[SELECT]]
;
%and = and i8 %x, 1
%cmp = icmp ne i8 %and, 0
%blshr = lshr i8 %y, 2
%select = select i1 %cmp, i8 %blshr, i8 %y
ret i8 %select
}
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