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clang-p2996/llvm/test/Transforms/InstCombine/select-with-bitwise-ops.ll
Nikita Popov a105877646 [InstCombine] Remove some of the complexity-based canonicalization (#91185) 
The idea behind this canonicalization is that it allows us to handle less
patterns, because we know that some will be canonicalized away. This is
indeed very useful to e.g. know that constants are always on the right.

However, this is only useful if the canonicalization is actually
reliable. This is the case for constants, but not for arguments: Moving
these to the right makes it look like the "more complex" expression is
guaranteed to be on the left, but this is not actually the case in
practice. It fails as soon as you replace the argument with another
instruction.

The end result is that it looks like things correctly work in tests,
while they actually don't. We use the "thwart complexity-based
canonicalization" trick to handle this in tests, but it's often a
challenge for new contributors to get this right, and based on the
regressions this PR originally exposed, we clearly don't get this right
in many cases.

For this reason, I think that it's better to remove this complexity
canonicalization. It will make it much easier to write tests for
commuted cases and make sure that they are handled.
2024-08-21 12:02:54 +02:00

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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 [[Y:%.*]], [[TMP1]]
; 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> [[Y:%.*]], [[TMP1]]
; 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 <2 x i32> @select_icmp_eq_and_1_0_or_2_vec_poison1(<2 x i32> %x, <2 x i32> %y) {
; CHECK-LABEL: @select_icmp_eq_and_1_0_or_2_vec_poison1(
; CHECK-NEXT: [[AND:%.*]] = and <2 x i32> [[X:%.*]], <i32 1, i32 poison>
; CHECK-NEXT: [[TMP1:%.*]] = shl nuw nsw <2 x i32> [[AND]], <i32 1, i32 1>
; CHECK-NEXT: [[SELECT:%.*]] = or <2 x i32> [[Y:%.*]], [[TMP1]]
; CHECK-NEXT: ret <2 x i32> [[SELECT]]
;
%and = and <2 x i32> %x, <i32 1, i32 poison>
%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 <2 x i32> @select_icmp_eq_and_1_0_or_2_vec_poison2(<2 x i32> %x, <2 x i32> %y) {
; CHECK-LABEL: @select_icmp_eq_and_1_0_or_2_vec_poison2(
; 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> [[Y:%.*]], [[TMP1]]
; CHECK-NEXT: ret <2 x i32> [[SELECT]]
;
%and = and <2 x i32> %x, <i32 1, i32 1>
%cmp = icmp eq <2 x i32> %and, <i32 0, i32 poison>
%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 <2 x i32> @select_icmp_eq_and_1_0_or_2_vec_poison3(<2 x i32> %x, <2 x i32> %y) {
; CHECK-LABEL: @select_icmp_eq_and_1_0_or_2_vec_poison3(
; 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> [[Y:%.*]], [[TMP1]]
; 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 poison>
%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 [[Y:%.*]], [[TMP1]]
; 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 [[Y:%.*]], [[TMP1]]
; 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> [[Y:%.*]], [[TMP1]]
; 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 [[Y:%.*]], [[TMP1]]
; 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 [[Y:%.*]], [[TMP1]]
; 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> [[Y:%.*]], [[TMP1]]
; 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 [[Y:%.*]], [[AND]]
; 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> [[Y:%.*]], [[AND]]
; 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 [[Y:%.*]], [[AND]]
; 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 [[Y:%.*]], [[TMP2]]
; 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> [[Y:%.*]], [[TMP2]]
; 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 [[Y:%.*]], [[TMP2]]
; 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 [[Y:%.*]], [[TMP2]]
; 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 [[Y:%.*]], [[TMP2]]
; 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> [[Y:%.*]], [[TMP2]]
; 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 [[Y:%.*]], [[TMP1]]
; 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 [[Y:%.*]], [[TMP2]]
; 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 [[Y:%.*]], [[TMP2]]
; 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> [[Y:%.*]], [[TMP2]]
; 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 [[Y:%.*]], [[TMP1]]
; 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> [[Y:%.*]], [[TMP1]]
; 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 [[Y:%.*]], [[TMP1]]
; 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 [[Y:%.*]], [[TMP2]]
; 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> [[Y:%.*]], [[TMP2]]
; 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 [[Y:%.*]], [[TMP2]]
; 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 [[Y]], [[TMP1]]
; 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 [[Y]], [[TMP1]]
; 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 [[Y]], [[AND]]
; 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 [[Y]], [[AND]]
; 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 [[Y]], [[TMP1]]
; 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 [[Y:%.*]], [[TMP1]]
; 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 [[Y:%.*]], [[TMP1]]
; 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 [[Y:%.*]], [[AND]]
; 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 [[Y:%.*]], [[AND]]
; 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 [[Y:%.*]], [[TMP1]]
; 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 [[Y]], [[AND]]
; 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 [[Y]], [[AND]]
; 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 [[Y:%.*]], [[TMP2]]
; 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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