a105877646
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.
796 lines
27 KiB
LLVM
796 lines
27 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=instcombine -S | FileCheck %s
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declare i1 @gen1()
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define i1 @cond_eq_and(i8 %X, i8 %Y, i8 noundef %C) {
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; CHECK-LABEL: @cond_eq_and(
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; CHECK-NEXT: [[COND:%.*]] = icmp eq i8 [[X:%.*]], [[C:%.*]]
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; CHECK-NEXT: [[LHS:%.*]] = icmp ult i8 [[X]], [[Y:%.*]]
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; CHECK-NEXT: [[RES:%.*]] = select i1 [[COND]], i1 [[LHS]], i1 false
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; CHECK-NEXT: ret i1 [[RES]]
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;
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%cond = icmp eq i8 %X, %C
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%lhs = icmp ult i8 %X, %Y
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%res = select i1 %cond, i1 %lhs, i1 false
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ret i1 %res
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}
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define i1 @cond_eq_and_const(i8 %X, i8 %Y) {
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; CHECK-LABEL: @cond_eq_and_const(
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; CHECK-NEXT: [[COND:%.*]] = icmp eq i8 [[X:%.*]], 10
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ugt i8 [[Y:%.*]], 10
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; CHECK-NEXT: [[RES:%.*]] = select i1 [[COND]], i1 [[TMP1]], i1 false
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; CHECK-NEXT: ret i1 [[RES]]
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;
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%cond = icmp eq i8 %X, 10
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%lhs = icmp ult i8 %X, %Y
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%res = select i1 %cond, i1 %lhs, i1 false
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ret i1 %res
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}
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define i1 @cond_eq_or(i8 %X, i8 %Y, i8 noundef %C) {
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; CHECK-LABEL: @cond_eq_or(
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; CHECK-NEXT: [[COND:%.*]] = icmp ne i8 [[X:%.*]], [[C:%.*]]
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; CHECK-NEXT: [[LHS:%.*]] = icmp ult i8 [[X]], [[Y:%.*]]
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; CHECK-NEXT: [[RES:%.*]] = select i1 [[COND]], i1 true, i1 [[LHS]]
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; CHECK-NEXT: ret i1 [[RES]]
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;
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%cond = icmp ne i8 %X, %C
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%lhs = icmp ult i8 %X, %Y
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%res = select i1 %cond, i1 true, i1 %lhs
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ret i1 %res
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}
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define i1 @cond_eq_or_const(i8 %X, i8 %Y) {
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; CHECK-LABEL: @cond_eq_or_const(
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; CHECK-NEXT: [[COND:%.*]] = icmp ne i8 [[X:%.*]], 10
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ugt i8 [[Y:%.*]], 10
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; CHECK-NEXT: [[RES:%.*]] = select i1 [[COND]], i1 true, i1 [[TMP1]]
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; CHECK-NEXT: ret i1 [[RES]]
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;
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%cond = icmp ne i8 %X, 10
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%lhs = icmp ult i8 %X, %Y
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%res = select i1 %cond, i1 true, i1 %lhs
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ret i1 %res
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}
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define i1 @xor_and(i1 %c, i32 %X, i32 %Y) {
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; CHECK-LABEL: @xor_and(
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; CHECK-NEXT: [[COMP:%.*]] = icmp uge i32 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[NOT_C:%.*]] = xor i1 [[C:%.*]], true
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; CHECK-NEXT: [[SEL:%.*]] = select i1 [[NOT_C]], i1 true, i1 [[COMP]]
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; CHECK-NEXT: ret i1 [[SEL]]
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;
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%comp = icmp ult i32 %X, %Y
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%sel = select i1 %c, i1 %comp, i1 false
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%res = xor i1 %sel, true
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ret i1 %res
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}
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define <2 x i1> @xor_and2(<2 x i1> %c, <2 x i32> %X, <2 x i32> %Y) {
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; CHECK-LABEL: @xor_and2(
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; CHECK-NEXT: [[COMP:%.*]] = icmp uge <2 x i32> [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[SEL:%.*]] = select <2 x i1> [[C:%.*]], <2 x i1> [[COMP]], <2 x i1> <i1 false, i1 true>
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; CHECK-NEXT: ret <2 x i1> [[SEL]]
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;
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%comp = icmp ult <2 x i32> %X, %Y
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%sel = select <2 x i1> %c, <2 x i1> %comp, <2 x i1> <i1 true, i1 false>
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%res = xor <2 x i1> %sel, <i1 true, i1 true>
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ret <2 x i1> %res
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}
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@glb = global i8 0
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define <2 x i1> @xor_and3(<2 x i1> %c, <2 x i32> %X, <2 x i32> %Y) {
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; CHECK-LABEL: @xor_and3(
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; CHECK-NEXT: [[COMP:%.*]] = icmp uge <2 x i32> [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[SEL:%.*]] = select <2 x i1> [[C:%.*]], <2 x i1> [[COMP]], <2 x i1> <i1 xor (i1 ptrtoint (ptr @glb to i1), i1 true), i1 true>
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; CHECK-NEXT: ret <2 x i1> [[SEL]]
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;
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%comp = icmp ult <2 x i32> %X, %Y
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%sel = select <2 x i1> %c, <2 x i1> %comp, <2 x i1> <i1 ptrtoint (ptr @glb to i1), i1 false>
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%res = xor <2 x i1> %sel, <i1 true, i1 true>
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ret <2 x i1> %res
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}
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define i1 @xor_or(i1 %c, i32 %X, i32 %Y) {
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; CHECK-LABEL: @xor_or(
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; CHECK-NEXT: [[COMP:%.*]] = icmp uge i32 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[NOT_C:%.*]] = xor i1 [[C:%.*]], true
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; CHECK-NEXT: [[SEL:%.*]] = select i1 [[NOT_C]], i1 [[COMP]], i1 false
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; CHECK-NEXT: ret i1 [[SEL]]
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;
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%comp = icmp ult i32 %X, %Y
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%sel = select i1 %c, i1 true, i1 %comp
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%res = xor i1 %sel, true
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ret i1 %res
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}
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define <2 x i1> @xor_or2(<2 x i1> %c, <2 x i32> %X, <2 x i32> %Y) {
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; CHECK-LABEL: @xor_or2(
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; CHECK-NEXT: [[COMP:%.*]] = icmp uge <2 x i32> [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[SEL:%.*]] = select <2 x i1> [[C:%.*]], <2 x i1> <i1 false, i1 true>, <2 x i1> [[COMP]]
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; CHECK-NEXT: ret <2 x i1> [[SEL]]
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;
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%comp = icmp ult <2 x i32> %X, %Y
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%sel = select <2 x i1> %c, <2 x i1> <i1 true, i1 false>, <2 x i1> %comp
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%res = xor <2 x i1> %sel, <i1 true, i1 true>
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ret <2 x i1> %res
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}
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define <2 x i1> @xor_or3(<2 x i1> %c, <2 x i32> %X, <2 x i32> %Y) {
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; CHECK-LABEL: @xor_or3(
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; CHECK-NEXT: [[COMP:%.*]] = icmp uge <2 x i32> [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[SEL:%.*]] = select <2 x i1> [[C:%.*]], <2 x i1> <i1 xor (i1 ptrtoint (ptr @glb to i1), i1 true), i1 true>, <2 x i1> [[COMP]]
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; CHECK-NEXT: ret <2 x i1> [[SEL]]
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;
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%comp = icmp ult <2 x i32> %X, %Y
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%sel = select <2 x i1> %c, <2 x i1> <i1 ptrtoint (ptr @glb to i1), i1 false>, <2 x i1> %comp
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%res = xor <2 x i1> %sel, <i1 true, i1 true>
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ret <2 x i1> %res
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}
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define i1 @and_orn_cmp_1_logical(i32 %a, i32 %b, i1 %y) {
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; CHECK-LABEL: @and_orn_cmp_1_logical(
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; CHECK-NEXT: [[X:%.*]] = icmp sgt i32 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = select i1 [[X]], i1 [[Y:%.*]], i1 false
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%x = icmp sgt i32 %a, %b
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%x_inv = icmp sle i32 %a, %b
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%or = select i1 %y, i1 true, i1 %x_inv
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%and = select i1 %x, i1 %or, i1 false
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ret i1 %and
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}
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; TODO: This should fold the same way as the next test.
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define i1 @and_orn_cmp_1_partial_logical(i32 %a, i32 %b, i1 %y) {
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; CHECK-LABEL: @and_orn_cmp_1_partial_logical(
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; CHECK-NEXT: [[X:%.*]] = icmp sgt i32 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: [[X_INV:%.*]] = icmp sle i32 [[A]], [[B]]
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; CHECK-NEXT: [[OR:%.*]] = or i1 [[X_INV]], [[Y:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = select i1 [[X]], i1 [[OR]], i1 false
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%x = icmp sgt i32 %a, %b
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%x_inv = icmp sle i32 %a, %b
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%or = or i1 %x_inv, %y
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%and = select i1 %x, i1 %or, i1 false
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ret i1 %and
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}
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define i1 @and_orn_cmp_1_partial_logical_commute(i32 %a, i32 %b) {
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; CHECK-LABEL: @and_orn_cmp_1_partial_logical_commute(
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; CHECK-NEXT: [[Y:%.*]] = call i1 @gen1()
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; CHECK-NEXT: [[X:%.*]] = icmp sgt i32 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = select i1 [[X]], i1 [[Y]], i1 false
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%y = call i1 @gen1() ; thwart complexity-based canonicalization
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%x = icmp sgt i32 %a, %b
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%x_inv = icmp sle i32 %a, %b
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%or = or i1 %y, %x_inv
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%and = select i1 %x, i1 %or, i1 false
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ret i1 %and
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}
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; TODO: This does not require poison-safe (select) logical-and.
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define i1 @andn_or_cmp_2_logical(i16 %a, i16 %b, i1 %y) {
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; CHECK-LABEL: @andn_or_cmp_2_logical(
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; CHECK-NEXT: [[X_INV:%.*]] = icmp slt i16 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = select i1 [[Y:%.*]], i1 [[X_INV]], i1 false
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%x = icmp sge i16 %a, %b
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%x_inv = icmp slt i16 %a, %b
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%or = select i1 %y, i1 true, i1 %x
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%and = select i1 %or, i1 %x_inv, i1 false
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ret i1 %and
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}
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define i1 @andn_or_cmp_2_partial_logical(i16 %a, i16 %b, i1 %y) {
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; CHECK-LABEL: @andn_or_cmp_2_partial_logical(
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; CHECK-NEXT: [[X_INV:%.*]] = icmp slt i16 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[Y:%.*]], [[X_INV]]
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%x = icmp sge i16 %a, %b
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%x_inv = icmp slt i16 %a, %b
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%or = or i1 %x, %y
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%and = select i1 %or, i1 %x_inv, i1 false
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ret i1 %and
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}
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define i1 @andn_or_cmp_2_partial_logical_commute(i16 %a, i16 %b) {
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; CHECK-LABEL: @andn_or_cmp_2_partial_logical_commute(
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; CHECK-NEXT: [[Y:%.*]] = call i1 @gen1()
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; CHECK-NEXT: [[X_INV:%.*]] = icmp slt i16 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[Y]], [[X_INV]]
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%y = call i1 @gen1() ; thwart complexity-based canonicalization
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%x = icmp sge i16 %a, %b
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%x_inv = icmp slt i16 %a, %b
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%or = or i1 %y, %x
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%and = select i1 %or, i1 %x_inv, i1 false
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ret i1 %and
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}
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; PR58552 - this would crash trying to replace non-matching types
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define <2 x i1> @not_logical_or(i1 %b, <2 x i32> %a) {
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; CHECK-LABEL: @not_logical_or(
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; CHECK-NEXT: [[COND:%.*]] = icmp ult <2 x i32> [[A:%.*]], <i32 3, i32 3>
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; CHECK-NEXT: [[IMPLIED:%.*]] = icmp slt <2 x i32> [[A]], <i32 -1, i32 -1>
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; CHECK-NEXT: [[OR:%.*]] = select i1 [[B:%.*]], <2 x i1> <i1 true, i1 true>, <2 x i1> [[IMPLIED]]
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; CHECK-NEXT: [[AND:%.*]] = select <2 x i1> [[COND]], <2 x i1> [[OR]], <2 x i1> zeroinitializer
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; CHECK-NEXT: ret <2 x i1> [[AND]]
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;
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%cond = icmp ult <2 x i32> %a, <i32 3, i32 3>
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%implied = icmp slt <2 x i32> %a, <i32 -1, i32 -1>
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%or = select i1 %b, <2 x i1> <i1 true, i1 true>, <2 x i1> %implied
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%and = select <2 x i1> %cond, <2 x i1> %or, <2 x i1> zeroinitializer
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ret <2 x i1> %and
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}
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; This could reduce, but we do not match select-of-vectors with scalar condition as logical-or.
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define <2 x i1> @not_logical_or2(i1 %b, <2 x i32> %a) {
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; CHECK-LABEL: @not_logical_or2(
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; CHECK-NEXT: [[COND:%.*]] = icmp ult <2 x i32> [[A:%.*]], <i32 3, i32 3>
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; CHECK-NEXT: [[IMPLIED:%.*]] = icmp slt <2 x i32> [[A]], <i32 -1, i32 -1>
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; CHECK-NEXT: [[OR:%.*]] = select i1 [[B:%.*]], <2 x i1> <i1 true, i1 true>, <2 x i1> [[IMPLIED]]
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; CHECK-NEXT: [[AND:%.*]] = select <2 x i1> [[OR]], <2 x i1> [[COND]], <2 x i1> zeroinitializer
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; CHECK-NEXT: ret <2 x i1> [[AND]]
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;
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%cond = icmp ult <2 x i32> %a, <i32 3, i32 3>
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%implied = icmp slt <2 x i32> %a, <i32 -1, i32 -1>
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%or = select i1 %b, <2 x i1> <i1 true, i1 true>, <2 x i1> %implied
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%and = select <2 x i1> %or, <2 x i1> %cond, <2 x i1> zeroinitializer
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ret <2 x i1> %and
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}
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define i1 @bools_logical_commute0(i1 %a, i1 %b, i1 %c) {
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; CHECK-LABEL: @bools_logical_commute0(
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; CHECK-NEXT: [[OR:%.*]] = select i1 [[C:%.*]], i1 [[B:%.*]], i1 [[A:%.*]]
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; CHECK-NEXT: ret i1 [[OR]]
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;
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%not = xor i1 %c, -1
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%and1 = select i1 %not, i1 %a, i1 false
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%and2 = select i1 %c, i1 %b, i1 false
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%or = select i1 %and1, i1 true, i1 %and2
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ret i1 %or
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}
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define i1 @bools_logical_commute0_and1(i1 %a, i1 %b, i1 %c) {
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; CHECK-LABEL: @bools_logical_commute0_and1(
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; CHECK-NEXT: [[OR:%.*]] = select i1 [[C:%.*]], i1 [[B:%.*]], i1 [[A:%.*]]
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; CHECK-NEXT: ret i1 [[OR]]
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;
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%not = xor i1 %c, -1
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%and1 = and i1 %not, %a
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%and2 = select i1 %c, i1 %b, i1 false
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%or = select i1 %and1, i1 true, i1 %and2
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ret i1 %or
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}
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define i1 @bools_logical_commute0_and2(i1 %a, i1 %b, i1 %c) {
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; CHECK-LABEL: @bools_logical_commute0_and2(
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; CHECK-NEXT: [[OR:%.*]] = select i1 [[C:%.*]], i1 [[B:%.*]], i1 [[A:%.*]]
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; CHECK-NEXT: ret i1 [[OR]]
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;
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%not = xor i1 %c, -1
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%and1 = select i1 %not, i1 %a, i1 false
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%and2 = and i1 %c, %b
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%or = select i1 %and1, i1 true, i1 %and2
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ret i1 %or
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}
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define i1 @bools_logical_commute0_and1_and2(i1 %a, i1 %b, i1 %c) {
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; CHECK-LABEL: @bools_logical_commute0_and1_and2(
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; CHECK-NEXT: [[OR:%.*]] = select i1 [[C:%.*]], i1 [[B:%.*]], i1 [[A:%.*]]
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; CHECK-NEXT: ret i1 [[OR]]
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;
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%not = xor i1 %c, -1
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%and1 = and i1 %not, %a
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%and2 = and i1 %c, %b
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%or = select i1 %and1, i1 true, i1 %and2
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ret i1 %or
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}
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define i1 @bools_logical_commute1(i1 %a, i1 %b, i1 %c) {
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; CHECK-LABEL: @bools_logical_commute1(
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; CHECK-NEXT: [[OR:%.*]] = select i1 [[C:%.*]], i1 [[B:%.*]], i1 [[A:%.*]]
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; CHECK-NEXT: ret i1 [[OR]]
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;
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%not = xor i1 %c, -1
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%and1 = select i1 %a, i1 %not, i1 false
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%and2 = select i1 %c, i1 %b, i1 false
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%or = select i1 %and1, i1 true, i1 %and2
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ret i1 %or
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}
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define i1 @bools_logical_commute1_and1(i1 %b, i1 %c) {
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; CHECK-LABEL: @bools_logical_commute1_and1(
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; CHECK-NEXT: [[A:%.*]] = call i1 @gen1()
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; CHECK-NEXT: [[OR:%.*]] = select i1 [[C:%.*]], i1 [[B:%.*]], i1 [[A]]
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; CHECK-NEXT: ret i1 [[OR]]
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;
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%a = call i1 @gen1()
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%not = xor i1 %c, -1
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%and1 = and i1 %a, %not
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%and2 = select i1 %c, i1 %b, i1 false
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%or = select i1 %and1, i1 true, i1 %and2
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ret i1 %or
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}
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define i1 @bools_logical_commute1_and2(i1 %a, i1 %b, i1 %c) {
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; CHECK-LABEL: @bools_logical_commute1_and2(
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; CHECK-NEXT: [[OR:%.*]] = select i1 [[C:%.*]], i1 [[B:%.*]], i1 [[A:%.*]]
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; CHECK-NEXT: ret i1 [[OR]]
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;
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%not = xor i1 %c, -1
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%and1 = select i1 %a, i1 %not, i1 false
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%and2 = and i1 %c, %b
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%or = select i1 %and1, i1 true, i1 %and2
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ret i1 %or
|
|
}
|
|
|
|
define i1 @bools_logical_commute1_and1_and2(i1 %b, i1 %c) {
|
|
; CHECK-LABEL: @bools_logical_commute1_and1_and2(
|
|
; CHECK-NEXT: [[A:%.*]] = call i1 @gen1()
|
|
; CHECK-NEXT: [[OR:%.*]] = select i1 [[C:%.*]], i1 [[B:%.*]], i1 [[A]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%a = call i1 @gen1()
|
|
%not = xor i1 %c, -1
|
|
%and1 = and i1 %a, %not
|
|
%and2 = and i1 %c, %b
|
|
%or = select i1 %and1, i1 true, i1 %and2
|
|
ret i1 %or
|
|
}
|
|
|
|
define <2 x i1> @bools_logical_commute2(<2 x i1> %a, <2 x i1> %b, <2 x i1> %c) {
|
|
; CHECK-LABEL: @bools_logical_commute2(
|
|
; CHECK-NEXT: [[OR:%.*]] = select <2 x i1> [[C:%.*]], <2 x i1> [[B:%.*]], <2 x i1> [[A:%.*]]
|
|
; CHECK-NEXT: ret <2 x i1> [[OR]]
|
|
;
|
|
%not = xor <2 x i1> %c, <i1 -1, i1 -1>
|
|
%and1 = select <2 x i1> %not, <2 x i1> %a, <2 x i1> <i1 false, i1 false>
|
|
%and2 = select <2 x i1> %b, <2 x i1> %c, <2 x i1> <i1 false, i1 false>
|
|
%or = select <2 x i1> %and1, <2 x i1> <i1 true, i1 true>, <2 x i1> %and2
|
|
ret <2 x i1> %or
|
|
}
|
|
|
|
define <2 x i1> @bools_logical_commute2_and1(<2 x i1> %a, <2 x i1> %b, <2 x i1> %c) {
|
|
; CHECK-LABEL: @bools_logical_commute2_and1(
|
|
; CHECK-NEXT: [[OR:%.*]] = select <2 x i1> [[C:%.*]], <2 x i1> [[B:%.*]], <2 x i1> [[A:%.*]]
|
|
; CHECK-NEXT: ret <2 x i1> [[OR]]
|
|
;
|
|
%not = xor <2 x i1> %c, <i1 -1, i1 -1>
|
|
%and1 = and <2 x i1> %not, %a
|
|
%and2 = select <2 x i1> %b, <2 x i1> %c, <2 x i1> <i1 false, i1 false>
|
|
%or = select <2 x i1> %and1, <2 x i1> <i1 true, i1 true>, <2 x i1> %and2
|
|
ret <2 x i1> %or
|
|
}
|
|
|
|
define <2 x i1> @bools_logical_commute2_and2(<2 x i1> %a, <2 x i1> %b, <2 x i1> %c) {
|
|
; CHECK-LABEL: @bools_logical_commute2_and2(
|
|
; CHECK-NEXT: [[OR:%.*]] = select <2 x i1> [[C:%.*]], <2 x i1> [[B:%.*]], <2 x i1> [[A:%.*]]
|
|
; CHECK-NEXT: ret <2 x i1> [[OR]]
|
|
;
|
|
%not = xor <2 x i1> %c, <i1 -1, i1 -1>
|
|
%and1 = select <2 x i1> %not, <2 x i1> %a, <2 x i1> <i1 false, i1 false>
|
|
%and2 = and <2 x i1> %b, %c
|
|
%or = select <2 x i1> %and1, <2 x i1> <i1 true, i1 true>, <2 x i1> %and2
|
|
ret <2 x i1> %or
|
|
}
|
|
|
|
define <2 x i1> @bools_logical_commute2_and1_and2(<2 x i1> %a, <2 x i1> %b, <2 x i1> %c) {
|
|
; CHECK-LABEL: @bools_logical_commute2_and1_and2(
|
|
; CHECK-NEXT: [[OR:%.*]] = select <2 x i1> [[C:%.*]], <2 x i1> [[B:%.*]], <2 x i1> [[A:%.*]]
|
|
; CHECK-NEXT: ret <2 x i1> [[OR]]
|
|
;
|
|
%not = xor <2 x i1> %c, <i1 -1, i1 -1>
|
|
%and1 = and <2 x i1> %not, %a
|
|
%and2 = and <2 x i1> %b, %c
|
|
%or = select <2 x i1> %and1, <2 x i1> <i1 true, i1 true>, <2 x i1> %and2
|
|
ret <2 x i1> %or
|
|
}
|
|
|
|
define i1 @bools_logical_commute3(i1 %a, i1 %b, i1 %c) {
|
|
; CHECK-LABEL: @bools_logical_commute3(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = freeze i1 [[C:%.*]]
|
|
; CHECK-NEXT: [[OR:%.*]] = select i1 [[TMP1]], i1 [[B:%.*]], i1 [[A:%.*]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%not = xor i1 %c, -1
|
|
%and1 = select i1 %a, i1 %not, i1 false
|
|
%and2 = select i1 %b, i1 %c, i1 false
|
|
%or = select i1 %and1, i1 true, i1 %and2
|
|
ret i1 %or
|
|
}
|
|
|
|
define i1 @bools_logical_commute3_and1(i1 %b, i1 %c) {
|
|
; CHECK-LABEL: @bools_logical_commute3_and1(
|
|
; CHECK-NEXT: [[A:%.*]] = call i1 @gen1()
|
|
; CHECK-NEXT: [[OR:%.*]] = select i1 [[C:%.*]], i1 [[B:%.*]], i1 [[A]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%a = call i1 @gen1()
|
|
%not = xor i1 %c, -1
|
|
%and1 = and i1 %a, %not
|
|
%and2 = select i1 %b, i1 %c, i1 false
|
|
%or = select i1 %and1, i1 true, i1 %and2
|
|
ret i1 %or
|
|
}
|
|
|
|
define i1 @bools_logical_commute3_and2(i1 %a, i1 %b, i1 %c) {
|
|
; CHECK-LABEL: @bools_logical_commute3_and2(
|
|
; CHECK-NEXT: [[OR:%.*]] = select i1 [[C:%.*]], i1 [[B:%.*]], i1 [[A:%.*]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%not = xor i1 %c, -1
|
|
%and1 = select i1 %a, i1 %not, i1 false
|
|
%and2 = and i1 %b, %c
|
|
%or = select i1 %and1, i1 true, i1 %and2
|
|
ret i1 %or
|
|
}
|
|
|
|
define i1 @bools_logical_commute3_and1_and2(i1 %b, i1 %c) {
|
|
; CHECK-LABEL: @bools_logical_commute3_and1_and2(
|
|
; CHECK-NEXT: [[A:%.*]] = call i1 @gen1()
|
|
; CHECK-NEXT: [[OR:%.*]] = select i1 [[C:%.*]], i1 [[B:%.*]], i1 [[A]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%a = call i1 @gen1()
|
|
%not = xor i1 %c, -1
|
|
%and1 = and i1 %a, %not
|
|
%and2 = and i1 %b, %c
|
|
%or = select i1 %and1, i1 true, i1 %and2
|
|
ret i1 %or
|
|
}
|
|
|
|
define i1 @bools2_logical_commute0(i1 %a, i1 %b, i1 %c) {
|
|
; CHECK-LABEL: @bools2_logical_commute0(
|
|
; CHECK-NEXT: [[OR:%.*]] = select i1 [[C:%.*]], i1 [[A:%.*]], i1 [[B:%.*]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%not = xor i1 %c, -1
|
|
%and1 = select i1 %c, i1 %a, i1 false
|
|
%and2 = select i1 %not, i1 %b, i1 false
|
|
%or = select i1 %and1, i1 true, i1 %and2
|
|
ret i1 %or
|
|
}
|
|
|
|
define i1 @bools2_logical_commute0_and1(i1 %a, i1 %b, i1 %c) {
|
|
; CHECK-LABEL: @bools2_logical_commute0_and1(
|
|
; CHECK-NEXT: [[OR:%.*]] = select i1 [[C:%.*]], i1 [[A:%.*]], i1 [[B:%.*]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%not = xor i1 %c, -1
|
|
%and1 = and i1 %c, %a
|
|
%and2 = select i1 %not, i1 %b, i1 false
|
|
%or = select i1 %and1, i1 true, i1 %and2
|
|
ret i1 %or
|
|
}
|
|
|
|
define i1 @bools2_logical_commute0_and2(i1 %a, i1 %b, i1 %c) {
|
|
; CHECK-LABEL: @bools2_logical_commute0_and2(
|
|
; CHECK-NEXT: [[OR:%.*]] = select i1 [[C:%.*]], i1 [[A:%.*]], i1 [[B:%.*]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%not = xor i1 %c, -1
|
|
%and1 = select i1 %c, i1 %a, i1 false
|
|
%and2 = and i1 %not, %b
|
|
%or = select i1 %and1, i1 true, i1 %and2
|
|
ret i1 %or
|
|
}
|
|
|
|
define i1 @bools2_logical_commute0_and1_and2(i1 %a, i1 %b, i1 %c) {
|
|
; CHECK-LABEL: @bools2_logical_commute0_and1_and2(
|
|
; CHECK-NEXT: [[OR:%.*]] = select i1 [[C:%.*]], i1 [[A:%.*]], i1 [[B:%.*]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%not = xor i1 %c, -1
|
|
%and1 = and i1 %c, %a
|
|
%and2 = and i1 %not, %b
|
|
%or = select i1 %and1, i1 true, i1 %and2
|
|
ret i1 %or
|
|
}
|
|
|
|
define i1 @bools2_logical_commute1(i1 %a, i1 %b, i1 %c) {
|
|
; CHECK-LABEL: @bools2_logical_commute1(
|
|
; CHECK-NEXT: [[OR:%.*]] = select i1 [[C:%.*]], i1 [[A:%.*]], i1 [[B:%.*]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%not = xor i1 %c, -1
|
|
%and1 = select i1 %a, i1 %c, i1 false
|
|
%and2 = select i1 %not, i1 %b, i1 false
|
|
%or = select i1 %and1, i1 true, i1 %and2
|
|
ret i1 %or
|
|
}
|
|
|
|
define i1 @bools2_logical_commute1_and1(i1 %a, i1 %b, i1 %c) {
|
|
; CHECK-LABEL: @bools2_logical_commute1_and1(
|
|
; CHECK-NEXT: [[OR:%.*]] = select i1 [[C:%.*]], i1 [[A:%.*]], i1 [[B:%.*]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%not = xor i1 %c, -1
|
|
%and1 = and i1 %a, %c
|
|
%and2 = select i1 %not, i1 %b, i1 false
|
|
%or = select i1 %and1, i1 true, i1 %and2
|
|
ret i1 %or
|
|
}
|
|
|
|
define i1 @bools2_logical_commute1_and2(i1 %a, i1 %b, i1 %c) {
|
|
; CHECK-LABEL: @bools2_logical_commute1_and2(
|
|
; CHECK-NEXT: [[OR:%.*]] = select i1 [[C:%.*]], i1 [[A:%.*]], i1 [[B:%.*]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%not = xor i1 %c, -1
|
|
%and1 = select i1 %a, i1 %c, i1 false
|
|
%and2 = and i1 %not, %b
|
|
%or = select i1 %and1, i1 true, i1 %and2
|
|
ret i1 %or
|
|
}
|
|
|
|
define i1 @bools2_logical_commute1_and1_and2(i1 %a, i1 %b, i1 %c) {
|
|
; CHECK-LABEL: @bools2_logical_commute1_and1_and2(
|
|
; CHECK-NEXT: [[OR:%.*]] = select i1 [[C:%.*]], i1 [[A:%.*]], i1 [[B:%.*]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%not = xor i1 %c, -1
|
|
%and1 = and i1 %a, %c
|
|
%and2 = and i1 %not, %b
|
|
%or = select i1 %and1, i1 true, i1 %and2
|
|
ret i1 %or
|
|
}
|
|
|
|
define i1 @bools2_logical_commute2(i1 %a, i1 %b, i1 %c) {
|
|
; CHECK-LABEL: @bools2_logical_commute2(
|
|
; CHECK-NEXT: [[OR:%.*]] = select i1 [[C:%.*]], i1 [[A:%.*]], i1 [[B:%.*]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%not = xor i1 %c, -1
|
|
%and1 = select i1 %c, i1 %a, i1 false
|
|
%and2 = select i1 %b, i1 %not, i1 false
|
|
%or = select i1 %and1, i1 true, i1 %and2
|
|
ret i1 %or
|
|
}
|
|
|
|
define i1 @bools2_logical_commute2_and1(i1 %a, i1 %b, i1 %c) {
|
|
; CHECK-LABEL: @bools2_logical_commute2_and1(
|
|
; CHECK-NEXT: [[OR:%.*]] = select i1 [[C:%.*]], i1 [[A:%.*]], i1 [[B:%.*]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%not = xor i1 %c, -1
|
|
%and1 = and i1 %c, %a
|
|
%and2 = select i1 %b, i1 %not, i1 false
|
|
%or = select i1 %and1, i1 true, i1 %and2
|
|
ret i1 %or
|
|
}
|
|
|
|
define i1 @bools2_logical_commute2_and2(i1 %a, i1 %c) {
|
|
; CHECK-LABEL: @bools2_logical_commute2_and2(
|
|
; CHECK-NEXT: [[B:%.*]] = call i1 @gen1()
|
|
; CHECK-NEXT: [[OR:%.*]] = select i1 [[C:%.*]], i1 [[A:%.*]], i1 [[B]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%b = call i1 @gen1()
|
|
%not = xor i1 %c, -1
|
|
%and1 = select i1 %c, i1 %a, i1 false
|
|
%and2 = and i1 %b, %not
|
|
%or = select i1 %and1, i1 true, i1 %and2
|
|
ret i1 %or
|
|
}
|
|
|
|
define i1 @bools2_logical_commute2_and1_and2(i1 %a, i1 %c) {
|
|
; CHECK-LABEL: @bools2_logical_commute2_and1_and2(
|
|
; CHECK-NEXT: [[B:%.*]] = call i1 @gen1()
|
|
; CHECK-NEXT: [[OR:%.*]] = select i1 [[C:%.*]], i1 [[A:%.*]], i1 [[B]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%b = call i1 @gen1()
|
|
%not = xor i1 %c, -1
|
|
%and1 = and i1 %c, %a
|
|
%and2 = and i1 %b, %not
|
|
%or = select i1 %and1, i1 true, i1 %and2
|
|
ret i1 %or
|
|
}
|
|
|
|
; Freeze 'c' to prevent poison from leaking.
|
|
|
|
define i1 @bools2_logical_commute3(i1 %a, i1 %b, i1 %c) {
|
|
; CHECK-LABEL: @bools2_logical_commute3(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = freeze i1 [[C:%.*]]
|
|
; CHECK-NEXT: [[OR:%.*]] = select i1 [[TMP1]], i1 [[A:%.*]], i1 [[B:%.*]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%not = xor i1 %c, -1
|
|
%and1 = select i1 %a, i1 %c, i1 false
|
|
%and2 = select i1 %b, i1 %not, i1 false
|
|
%or = select i1 %and1, i1 true, i1 %and2
|
|
ret i1 %or
|
|
}
|
|
|
|
; No freeze needed when 'c' is guaranteed not be poison.
|
|
; Intermediate logic folds may already reduce this.
|
|
|
|
define i1 @bools2_logical_commute3_nopoison(i1 %a, i1 %b, i1 noundef %c) {
|
|
; CHECK-LABEL: @bools2_logical_commute3_nopoison(
|
|
; CHECK-NEXT: [[OR:%.*]] = select i1 [[C:%.*]], i1 [[A:%.*]], i1 [[B:%.*]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%not = xor i1 %c, -1
|
|
%and1 = select i1 %a, i1 %c, i1 false
|
|
%and2 = select i1 %b, i1 %not, i1 false
|
|
%or = select i1 %and1, i1 true, i1 %and2
|
|
ret i1 %or
|
|
}
|
|
|
|
define i1 @bools2_logical_commute3_and1(i1 %a, i1 %b, i1 %c) {
|
|
; CHECK-LABEL: @bools2_logical_commute3_and1(
|
|
; CHECK-NEXT: [[OR:%.*]] = select i1 [[C:%.*]], i1 [[A:%.*]], i1 [[B:%.*]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%not = xor i1 %c, -1
|
|
%and1 = and i1 %a, %c
|
|
%and2 = select i1 %b, i1 %not, i1 false
|
|
%or = select i1 %and1, i1 true, i1 %and2
|
|
ret i1 %or
|
|
}
|
|
|
|
define i1 @bools2_logical_commute3_and2(i1 %a, i1 %c) {
|
|
; CHECK-LABEL: @bools2_logical_commute3_and2(
|
|
; CHECK-NEXT: [[B:%.*]] = call i1 @gen1()
|
|
; CHECK-NEXT: [[OR:%.*]] = select i1 [[C:%.*]], i1 [[A:%.*]], i1 [[B]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%b = call i1 @gen1()
|
|
%not = xor i1 %c, -1
|
|
%and1 = select i1 %a, i1 %c, i1 false
|
|
%and2 = and i1 %b, %not
|
|
%or = select i1 %and1, i1 true, i1 %and2
|
|
ret i1 %or
|
|
}
|
|
|
|
define i1 @bools2_logical_commute3_and1_and2(i1 %a, i1 %c) {
|
|
; CHECK-LABEL: @bools2_logical_commute3_and1_and2(
|
|
; CHECK-NEXT: [[B:%.*]] = call i1 @gen1()
|
|
; CHECK-NEXT: [[OR:%.*]] = select i1 [[C:%.*]], i1 [[A:%.*]], i1 [[B]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%b = call i1 @gen1()
|
|
%not = xor i1 %c, -1
|
|
%and1 = and i1 %a, %c
|
|
%and2 = and i1 %b, %not
|
|
%or = select i1 %and1, i1 true, i1 %and2
|
|
ret i1 %or
|
|
}
|
|
|
|
define i1 @orn_and_cmp_1_logical(i37 %a, i37 %b, i1 %y) {
|
|
; CHECK-LABEL: @orn_and_cmp_1_logical(
|
|
; CHECK-NEXT: [[X_INV:%.*]] = icmp sle i37 [[A:%.*]], [[B:%.*]]
|
|
; CHECK-NEXT: [[OR:%.*]] = select i1 [[X_INV]], i1 true, i1 [[Y:%.*]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%x = icmp sgt i37 %a, %b
|
|
%x_inv = icmp sle i37 %a, %b
|
|
%and = select i1 %y, i1 %x, i1 false
|
|
%or = select i1 %x_inv, i1 true, i1 %and
|
|
ret i1 %or
|
|
}
|
|
|
|
; TODO: This should fold the same way as the next test.
|
|
|
|
define i1 @orn_and_cmp_1_partial_logical(i37 %a, i37 %b, i1 %y) {
|
|
; CHECK-LABEL: @orn_and_cmp_1_partial_logical(
|
|
; CHECK-NEXT: [[X:%.*]] = icmp sgt i37 [[A:%.*]], [[B:%.*]]
|
|
; CHECK-NEXT: [[X_INV:%.*]] = icmp sle i37 [[A]], [[B]]
|
|
; CHECK-NEXT: [[AND:%.*]] = and i1 [[X]], [[Y:%.*]]
|
|
; CHECK-NEXT: [[OR:%.*]] = select i1 [[X_INV]], i1 true, i1 [[AND]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%x = icmp sgt i37 %a, %b
|
|
%x_inv = icmp sle i37 %a, %b
|
|
%and = and i1 %x, %y
|
|
%or = select i1 %x_inv, i1 true, i1 %and
|
|
ret i1 %or
|
|
}
|
|
|
|
define i1 @orn_and_cmp_1_partial_logical_commute(i37 %a, i37 %b) {
|
|
; CHECK-LABEL: @orn_and_cmp_1_partial_logical_commute(
|
|
; CHECK-NEXT: [[Y:%.*]] = call i1 @gen1()
|
|
; CHECK-NEXT: [[X_INV:%.*]] = icmp sle i37 [[A:%.*]], [[B:%.*]]
|
|
; CHECK-NEXT: [[OR:%.*]] = select i1 [[X_INV]], i1 true, i1 [[Y]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%y = call i1 @gen1() ; thwart complexity-based canonicalization
|
|
%x = icmp sgt i37 %a, %b
|
|
%x_inv = icmp sle i37 %a, %b
|
|
%and = and i1 %y, %x
|
|
%or = select i1 %x_inv, i1 true, i1 %and
|
|
ret i1 %or
|
|
}
|
|
|
|
; TODO: This does not require poison-safe (select) logical-or.
|
|
|
|
define i1 @orn_and_cmp_2_logical(i16 %a, i16 %b, i1 %y) {
|
|
; CHECK-LABEL: @orn_and_cmp_2_logical(
|
|
; CHECK-NEXT: [[X_INV:%.*]] = icmp slt i16 [[A:%.*]], [[B:%.*]]
|
|
; CHECK-NEXT: [[OR:%.*]] = select i1 [[Y:%.*]], i1 true, i1 [[X_INV]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%x = icmp sge i16 %a, %b
|
|
%x_inv = icmp slt i16 %a, %b
|
|
%and = select i1 %y, i1 %x, i1 false
|
|
%or = select i1 %and, i1 true, i1 %x_inv
|
|
ret i1 %or
|
|
}
|
|
|
|
define i1 @orn_and_cmp_2_partial_logical(i16 %a, i16 %b, i1 %y) {
|
|
; CHECK-LABEL: @orn_and_cmp_2_partial_logical(
|
|
; CHECK-NEXT: [[X_INV:%.*]] = icmp slt i16 [[A:%.*]], [[B:%.*]]
|
|
; CHECK-NEXT: [[OR:%.*]] = or i1 [[Y:%.*]], [[X_INV]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%x = icmp sge i16 %a, %b
|
|
%x_inv = icmp slt i16 %a, %b
|
|
%and = and i1 %x, %y
|
|
%or = select i1 %and, i1 true, i1 %x_inv
|
|
ret i1 %or
|
|
}
|
|
|
|
define i1 @orn_and_cmp_2_partial_logical_commute(i16 %a, i16 %b) {
|
|
; CHECK-LABEL: @orn_and_cmp_2_partial_logical_commute(
|
|
; CHECK-NEXT: [[Y:%.*]] = call i1 @gen1()
|
|
; CHECK-NEXT: [[X_INV:%.*]] = icmp slt i16 [[A:%.*]], [[B:%.*]]
|
|
; CHECK-NEXT: [[OR:%.*]] = or i1 [[Y]], [[X_INV]]
|
|
; CHECK-NEXT: ret i1 [[OR]]
|
|
;
|
|
%y = call i1 @gen1() ; thwart complexity-based canonicalization
|
|
%x = icmp sge i16 %a, %b
|
|
%x_inv = icmp slt i16 %a, %b
|
|
%and = and i1 %y, %x
|
|
%or = select i1 %and, i1 true, i1 %x_inv
|
|
ret i1 %or
|
|
}
|
|
|
|
; PR58552 - this would crash trying to replace non-matching types
|
|
|
|
define <2 x i1> @not_logical_and(i1 %b, <2 x i32> %a) {
|
|
; CHECK-LABEL: @not_logical_and(
|
|
; CHECK-NEXT: [[COND:%.*]] = icmp ult <2 x i32> [[A:%.*]], <i32 3, i32 3>
|
|
; CHECK-NEXT: [[IMPLIED:%.*]] = icmp ugt <2 x i32> [[A]], <i32 1, i32 1>
|
|
; CHECK-NEXT: [[AND:%.*]] = select i1 [[B:%.*]], <2 x i1> [[COND]], <2 x i1> zeroinitializer
|
|
; CHECK-NEXT: [[OR:%.*]] = select <2 x i1> [[IMPLIED]], <2 x i1> <i1 true, i1 true>, <2 x i1> [[AND]]
|
|
; CHECK-NEXT: ret <2 x i1> [[OR]]
|
|
;
|
|
%cond = icmp ult <2 x i32> %a, <i32 3, i32 3>
|
|
%implied = icmp ugt <2 x i32> %a, <i32 1, i32 1>
|
|
%and = select i1 %b, <2 x i1> %cond, <2 x i1> zeroinitializer
|
|
%or = select <2 x i1> %implied, <2 x i1> <i1 true, i1 true>, <2 x i1> %and
|
|
ret <2 x i1> %or
|
|
}
|
|
|
|
; This could reduce, but we do not match select-of-vectors with scalar condition as logical-and.
|
|
|
|
define <2 x i1> @not_logical_and2(i1 %b, <2 x i32> %a) {
|
|
; CHECK-LABEL: @not_logical_and2(
|
|
; CHECK-NEXT: [[COND:%.*]] = icmp ult <2 x i32> [[A:%.*]], <i32 3, i32 3>
|
|
; CHECK-NEXT: [[IMPLIED:%.*]] = icmp ugt <2 x i32> [[A]], <i32 1, i32 1>
|
|
; CHECK-NEXT: [[AND:%.*]] = select i1 [[B:%.*]], <2 x i1> [[COND]], <2 x i1> zeroinitializer
|
|
; CHECK-NEXT: [[OR:%.*]] = select <2 x i1> [[AND]], <2 x i1> <i1 true, i1 true>, <2 x i1> [[IMPLIED]]
|
|
; CHECK-NEXT: ret <2 x i1> [[OR]]
|
|
;
|
|
%cond = icmp ult <2 x i32> %a, <i32 3, i32 3>
|
|
%implied = icmp ugt <2 x i32> %a, <i32 1, i32 1>
|
|
%and = select i1 %b, <2 x i1> %cond, <2 x i1> zeroinitializer
|
|
%or = select <2 x i1> %and, <2 x i1> <i1 true, i1 true>, <2 x i1> %implied
|
|
ret <2 x i1> %or
|
|
}
|