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TheRock/compiler/amd-llvm/llvm/test/Transforms/InstCombine/icmp-with-selects.ll
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

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7.2 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals --version 2
; RUN: opt < %s -passes=instcombine -S | FileCheck %s
declare void @use(i32,...)
define i1 @both_sides_fold_slt(i32 %param, i1 %cond) {
; CHECK-LABEL: define i1 @both_sides_fold_slt
; CHECK-SAME: (i32 [[PARAM:%.*]], i1 [[COND:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: ret i1 false
;
entry:
%cond1 = select i1 %cond, i32 1, i32 %param
%cond6 = select i1 %cond, i32 9, i32 %param
%cmp = icmp slt i32 %cond6, %cond1
ret i1 %cmp
}
define i1 @both_sides_fold_eq(i32 %param, i1 %cond) {
; CHECK-LABEL: define i1 @both_sides_fold_eq
; CHECK-SAME: (i32 [[PARAM:%.*]], i1 [[COND:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[NOT_COND:%.*]] = xor i1 [[COND]], true
; CHECK-NEXT: ret i1 [[NOT_COND]]
;
entry:
%cond1 = select i1 %cond, i32 1, i32 %param
%cond6 = select i1 %cond, i32 9, i32 %param
%cmp = icmp eq i32 %cond6, %cond1
ret i1 %cmp
}
define i1 @one_side_fold_slt(i32 %val1, i32 %val2, i32 %param, i1 %cond) !prof !0 {
; CHECK-LABEL: define i1 @one_side_fold_slt
; CHECK-SAME: (i32 [[VAL1:%.*]], i32 [[VAL2:%.*]], i32 [[PARAM:%.*]], i1 [[COND:%.*]]) !prof [[PROF0:![0-9]+]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = icmp slt i32 [[VAL2]], [[VAL1]]
; CHECK-NEXT: [[CMP:%.*]] = select i1 [[COND]], i1 [[TMP0]], i1 false, !prof [[PROF1:![0-9]+]]
; CHECK-NEXT: ret i1 [[CMP]]
;
entry:
%cond1 = select i1 %cond, i32 %val1, i32 %param, !prof !1
%cond6 = select i1 %cond, i32 %val2, i32 %param, !prof !1
%cmp = icmp slt i32 %cond6, %cond1
ret i1 %cmp
}
define i1 @one_side_fold_sgt(i32 %val1, i32 %val2, i32 %param, i1 %cond) !prof !0 {
; CHECK-LABEL: define i1 @one_side_fold_sgt
; CHECK-SAME: (i32 [[VAL1:%.*]], i32 [[VAL2:%.*]], i32 [[PARAM:%.*]], i1 [[COND:%.*]]) !prof [[PROF0]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = icmp sgt i32 [[VAL2]], [[VAL1]]
; CHECK-NEXT: [[NOT_COND:%.*]] = xor i1 [[COND]], true
; CHECK-NEXT: [[CMP:%.*]] = select i1 [[NOT_COND]], i1 [[TMP0]], i1 false, !prof [[PROF2:![0-9]+]]
; CHECK-NEXT: ret i1 [[CMP]]
;
entry:
%cond1 = select i1 %cond, i32 %param, i32 %val1, !prof !1
%cond6 = select i1 %cond, i32 %param, i32 %val2, !prof !1
%cmp = icmp sgt i32 %cond6, %cond1
ret i1 %cmp
}
define i1 @one_side_fold_eq(i32 %val1, i32 %val2, i32 %param, i1 %cond) {
; CHECK-LABEL: define i1 @one_side_fold_eq
; CHECK-SAME: (i32 [[VAL1:%.*]], i32 [[VAL2:%.*]], i32 [[PARAM:%.*]], i1 [[COND:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = icmp eq i32 [[VAL2]], [[VAL1]]
; CHECK-NEXT: [[NOT_COND:%.*]] = xor i1 [[COND]], true
; CHECK-NEXT: [[CMP:%.*]] = select i1 [[NOT_COND]], i1 true, i1 [[TMP0]]
; CHECK-NEXT: ret i1 [[CMP]]
;
entry:
%cond1 = select i1 %cond, i32 %val1, i32 %param
%cond6 = select i1 %cond, i32 %val2, i32 %param
%cmp = icmp eq i32 %cond6, %cond1
ret i1 %cmp
}
define i1 @no_side_fold_cond(i32 %val1, i32 %val2, i32 %param, i1 %cond1, i1 %cond2) {
; CHECK-LABEL: define i1 @no_side_fold_cond
; CHECK-SAME: (i32 [[VAL1:%.*]], i32 [[VAL2:%.*]], i32 [[PARAM:%.*]], i1 [[COND1:%.*]], i1 [[COND2:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[COND3:%.*]] = select i1 [[COND1]], i32 [[VAL1]], i32 [[PARAM]]
; CHECK-NEXT: [[COND6:%.*]] = select i1 [[COND2]], i32 [[VAL2]], i32 [[PARAM]]
; CHECK-NEXT: [[CMP:%.*]] = icmp sle i32 [[COND6]], [[COND3]]
; CHECK-NEXT: ret i1 [[CMP]]
;
entry:
%cond3 = select i1 %cond1, i32 %val1, i32 %param
%cond6 = select i1 %cond2, i32 %val2, i32 %param
%cmp = icmp sle i32 %cond6, %cond3
ret i1 %cmp
}
define i1 @no_side_fold_op(i32 %val1, i32 %val2, i32 %val3, i1 %cond) {
; CHECK-LABEL: define i1 @no_side_fold_op
; CHECK-SAME: (i32 [[VAL1:%.*]], i32 [[VAL2:%.*]], i32 [[VAL3:%.*]], i1 [[COND:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[COND1:%.*]] = select i1 [[COND]], i32 [[VAL1]], i32 [[VAL2]]
; CHECK-NEXT: [[COND6:%.*]] = select i1 [[COND]], i32 [[VAL2]], i32 [[VAL3]]
; CHECK-NEXT: [[CMP:%.*]] = icmp sge i32 [[COND6]], [[COND1]]
; CHECK-NEXT: ret i1 [[CMP]]
;
entry:
%cond1 = select i1 %cond, i32 %val1, i32 %val2
%cond6 = select i1 %cond, i32 %val2, i32 %val3
%cmp = icmp sge i32 %cond6, %cond1
ret i1 %cmp
}
define i1 @one_select_mult_use(i32 %val1, i32 %val2, i32 %param, i1 %cond) {
; CHECK-LABEL: define i1 @one_select_mult_use
; CHECK-SAME: (i32 [[VAL1:%.*]], i32 [[VAL2:%.*]], i32 [[PARAM:%.*]], i1 [[COND:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[COND1:%.*]] = select i1 [[COND]], i32 [[VAL1]], i32 [[PARAM]]
; CHECK-NEXT: call void @use(i32 [[COND1]])
; CHECK-NEXT: [[TMP0:%.*]] = icmp slt i32 [[VAL2]], [[VAL1]]
; CHECK-NEXT: [[CMP:%.*]] = select i1 [[COND]], i1 [[TMP0]], i1 false
; CHECK-NEXT: ret i1 [[CMP]]
;
entry:
%cond1 = select i1 %cond, i32 %val1, i32 %param
%cond6 = select i1 %cond, i32 %val2, i32 %param
call void @use(i32 %cond1)
%cmp = icmp slt i32 %cond6, %cond1
ret i1 %cmp
}
define i1 @both_select_mult_use(i32 %val1, i32 %val2, i32 %param, i1 %cond) {
; CHECK-LABEL: define i1 @both_select_mult_use
; CHECK-SAME: (i32 [[VAL1:%.*]], i32 [[VAL2:%.*]], i32 [[PARAM:%.*]], i1 [[COND:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[COND1:%.*]] = select i1 [[COND]], i32 [[VAL1]], i32 [[PARAM]]
; CHECK-NEXT: [[COND6:%.*]] = select i1 [[COND]], i32 [[VAL2]], i32 [[PARAM]]
; CHECK-NEXT: call void @use(i32 [[COND1]], i32 [[COND6]])
; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[COND6]], [[COND1]]
; CHECK-NEXT: ret i1 [[CMP]]
;
entry:
%cond1 = select i1 %cond, i32 %val1, i32 %param
%cond6 = select i1 %cond, i32 %val2, i32 %param
call void @use(i32 %cond1, i32 %cond6)
%cmp = icmp slt i32 %cond6, %cond1
ret i1 %cmp
}
define <4 x i1> @fold_vector_ops(<4 x i32> %val1, <4 x i32> %val2, <4 x i32> %param, i1 %cond) {
; CHECK-LABEL: define <4 x i1> @fold_vector_ops
; CHECK-SAME: (<4 x i32> [[VAL1:%.*]], <4 x i32> [[VAL2:%.*]], <4 x i32> [[PARAM:%.*]], i1 [[COND:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = icmp eq <4 x i32> [[VAL2]], [[VAL1]]
; CHECK-NEXT: [[CMP:%.*]] = select i1 [[COND]], <4 x i1> [[TMP0]], <4 x i1> splat (i1 true)
; CHECK-NEXT: ret <4 x i1> [[CMP]]
;
entry:
%cond1 = select i1 %cond, <4 x i32> %val1, <4 x i32> %param
%cond6 = select i1 %cond, <4 x i32> %val2, <4 x i32> %param
%cmp = icmp eq <4 x i32> %cond6, %cond1
ret <4 x i1> %cmp
}
define <8 x i1> @fold_vector_cond_ops(<8 x i32> %val1, <8 x i32> %val2, <8 x i32> %param, <8 x i1> %cond) {
; CHECK-LABEL: define <8 x i1> @fold_vector_cond_ops
; CHECK-SAME: (<8 x i32> [[VAL1:%.*]], <8 x i32> [[VAL2:%.*]], <8 x i32> [[PARAM:%.*]], <8 x i1> [[COND:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = icmp sgt <8 x i32> [[VAL2]], [[VAL1]]
; CHECK-NEXT: [[CMP:%.*]] = select <8 x i1> [[COND]], <8 x i1> [[TMP0]], <8 x i1> zeroinitializer
; CHECK-NEXT: ret <8 x i1> [[CMP]]
;
entry:
%cond1 = select <8 x i1> %cond, <8 x i32> %val1, <8 x i32> %param
%cond6 = select <8 x i1> %cond, <8 x i32> %val2, <8 x i32> %param
%cmp = icmp sgt <8 x i32> %cond6, %cond1
ret <8 x i1> %cmp
}
!0 = !{!"function_entry_count", i64 1000}
!1 = !{!"branch_weights", i32 2, i32 3}
;.
; CHECK: [[PROF0]] = !{!"function_entry_count", i64 1000}
; CHECK: [[PROF1]] = !{!"branch_weights", i32 2, i32 3}
; CHECK: [[PROF2]] = !{!"branch_weights", i32 3, i32 2}
;.
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