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TheRock/compiler/amd-llvm/llvm/test/Transforms/CodeGenPrepare/AArch64/overflow-intrinsics.ll
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes='require<profile-summary>,function(codegenprepare)' -S < %s | FileCheck %s
; RUN: opt -enable-debugify -passes='require<profile-summary>,function(codegenprepare)' -S < %s 2>&1 | FileCheck %s -check-prefix=DEBUG
; Subset of tests from llvm/tests/Transforms/CodeGenPrepare/X86/overflow-intrinsics.ll
; to test shouldFormOverflowOp on SPARC, where it is not profitable to create
; overflow intrinsics if the math part is not used.
target triple = "arm64-apple-iphoneos"
define i64 @uaddo1_overflow_used(i64 %a, i64 %b) nounwind ssp {
; CHECK-LABEL: @uaddo1_overflow_used(
; CHECK-NEXT: [[TMP1:%.*]] = call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 [[B:%.*]], i64 [[A:%.*]])
; CHECK-NEXT: [[MATH:%.*]] = extractvalue { i64, i1 } [[TMP1]], 0
; CHECK-NEXT: [[OV:%.*]] = extractvalue { i64, i1 } [[TMP1]], 1
; CHECK-NEXT: [[Q:%.*]] = select i1 [[OV]], i64 [[B]], i64 42
; CHECK-NEXT: ret i64 [[Q]]
;
%add = add i64 %b, %a
%cmp = icmp ult i64 %add, %a
%Q = select i1 %cmp, i64 %b, i64 42
ret i64 %Q
}
define i64 @uaddo1_math_overflow_used(i64 %a, i64 %b, ptr %res) nounwind ssp {
; CHECK-LABEL: @uaddo1_math_overflow_used(
; CHECK-NEXT: [[TMP1:%.*]] = call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 [[B:%.*]], i64 [[A:%.*]])
; CHECK-NEXT: [[MATH:%.*]] = extractvalue { i64, i1 } [[TMP1]], 0
; CHECK-NEXT: [[OV:%.*]] = extractvalue { i64, i1 } [[TMP1]], 1
; CHECK-NEXT: [[Q:%.*]] = select i1 [[OV]], i64 [[B]], i64 42
; CHECK-NEXT: store i64 [[MATH]], ptr [[RES:%.*]]
; CHECK-NEXT: ret i64 [[Q]]
;
%add = add i64 %b, %a
%cmp = icmp ult i64 %add, %a
%Q = select i1 %cmp, i64 %b, i64 42
store i64 %add, ptr %res
ret i64 %Q
}
define i64 @uaddo2_overflow_used(i64 %a, i64 %b) nounwind ssp {
; CHECK-LABEL: @uaddo2_overflow_used(
; CHECK-NEXT: [[TMP1:%.*]] = call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 [[B:%.*]], i64 [[A:%.*]])
; CHECK-NEXT: [[MATH:%.*]] = extractvalue { i64, i1 } [[TMP1]], 0
; CHECK-NEXT: [[OV:%.*]] = extractvalue { i64, i1 } [[TMP1]], 1
; CHECK-NEXT: [[Q:%.*]] = select i1 [[OV]], i64 [[B]], i64 42
; CHECK-NEXT: ret i64 [[Q]]
;
%add = add i64 %b, %a
%cmp = icmp ult i64 %add, %b
%Q = select i1 %cmp, i64 %b, i64 42
ret i64 %Q
}
define i64 @uaddo2_math_overflow_used(i64 %a, i64 %b, ptr %res) nounwind ssp {
; CHECK-LABEL: @uaddo2_math_overflow_used(
; CHECK-NEXT: [[TMP1:%.*]] = call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 [[B:%.*]], i64 [[A:%.*]])
; CHECK-NEXT: [[MATH:%.*]] = extractvalue { i64, i1 } [[TMP1]], 0
; CHECK-NEXT: [[OV:%.*]] = extractvalue { i64, i1 } [[TMP1]], 1
; CHECK-NEXT: [[Q:%.*]] = select i1 [[OV]], i64 [[B]], i64 42
; CHECK-NEXT: store i64 [[MATH]], ptr [[RES:%.*]]
; CHECK-NEXT: ret i64 [[Q]]
;
%add = add i64 %b, %a
%cmp = icmp ult i64 %add, %b
%Q = select i1 %cmp, i64 %b, i64 42
store i64 %add, ptr %res
ret i64 %Q
}
define i64 @uaddo3_overflow_used(i64 %a, i64 %b) nounwind ssp {
; CHECK-LABEL: @uaddo3_overflow_used(
; CHECK-NEXT: [[TMP1:%.*]] = call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 [[B:%.*]], i64 [[A:%.*]])
; CHECK-NEXT: [[MATH:%.*]] = extractvalue { i64, i1 } [[TMP1]], 0
; CHECK-NEXT: [[OV:%.*]] = extractvalue { i64, i1 } [[TMP1]], 1
; CHECK-NEXT: [[Q:%.*]] = select i1 [[OV]], i64 [[B]], i64 42
; CHECK-NEXT: ret i64 [[Q]]
;
%add = add i64 %b, %a
%cmp = icmp ugt i64 %b, %add
%Q = select i1 %cmp, i64 %b, i64 42
ret i64 %Q
}
define i64 @uaddo3_math_overflow_used(i64 %a, i64 %b, ptr %res) nounwind ssp {
; CHECK-LABEL: @uaddo3_math_overflow_used(
; CHECK-NEXT: [[TMP1:%.*]] = call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 [[B:%.*]], i64 [[A:%.*]])
; CHECK-NEXT: [[MATH:%.*]] = extractvalue { i64, i1 } [[TMP1]], 0
; CHECK-NEXT: [[OV:%.*]] = extractvalue { i64, i1 } [[TMP1]], 1
; CHECK-NEXT: [[Q:%.*]] = select i1 [[OV]], i64 [[B]], i64 42
; CHECK-NEXT: store i64 [[MATH]], ptr [[RES:%.*]]
; CHECK-NEXT: ret i64 [[Q]]
;
%add = add i64 %b, %a
%cmp = icmp ugt i64 %b, %add
%Q = select i1 %cmp, i64 %b, i64 42
store i64 %add, ptr %res
ret i64 %Q
}
; Instcombine folds (a + b <u a) to (a ^ -1 <u b). Make sure we match this
; pattern as well.
define i64 @uaddo6_xor(i64 %a, i64 %b) {
; CHECK-LABEL: @uaddo6_xor(
; CHECK-NEXT: [[TMP1:%.*]] = call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 [[A:%.*]], i64 [[B:%.*]])
; CHECK-NEXT: [[OV:%.*]] = extractvalue { i64, i1 } [[TMP1]], 1
; CHECK-NEXT: [[Q:%.*]] = select i1 [[OV]], i64 [[B]], i64 42
; CHECK-NEXT: ret i64 [[Q]]
;
%x = xor i64 %a, -1
%cmp = icmp ult i64 %x, %b
%Q = select i1 %cmp, i64 %b, i64 42
ret i64 %Q
}
define i64 @uaddo6_xor_commuted(i64 %a, i64 %b) {
; CHECK-LABEL: @uaddo6_xor_commuted(
; CHECK-NEXT: [[TMP1:%.*]] = call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 [[A:%.*]], i64 [[B:%.*]])
; CHECK-NEXT: [[OV:%.*]] = extractvalue { i64, i1 } [[TMP1]], 1
; CHECK-NEXT: [[Q:%.*]] = select i1 [[OV]], i64 [[B]], i64 42
; CHECK-NEXT: ret i64 [[Q]]
;
%x = xor i64 %a, -1
%cmp = icmp ugt i64 %b, %x
%Q = select i1 %cmp, i64 %b, i64 42
ret i64 %Q
}
declare void @use(i64)
define i64 @uaddo6_xor_multi_use(i64 %a, i64 %b) {
; CHECK-LABEL: @uaddo6_xor_multi_use(
; CHECK-NEXT: [[X:%.*]] = xor i64 -1, [[A:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i64 [[X]], [[B:%.*]]
; CHECK-NEXT: [[Q:%.*]] = select i1 [[CMP]], i64 [[B]], i64 42
; CHECK-NEXT: call void @use(i64 [[X]])
; CHECK-NEXT: ret i64 [[Q]]
;
%x = xor i64 -1, %a
%cmp = icmp ult i64 %x, %b
%Q = select i1 %cmp, i64 %b, i64 42
call void @use(i64 %x)
ret i64 %Q
}
define i1 @usubo_ult_i64_overflow_used(i64 %x, i64 %y, ptr %p) {
; CHECK-LABEL: @usubo_ult_i64_overflow_used(
; CHECK-NEXT: [[S:%.*]] = sub i64 [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT: [[OV:%.*]] = icmp ult i64 [[X]], [[Y]]
; CHECK-NEXT: ret i1 [[OV]]
;
%s = sub i64 %x, %y
%ov = icmp ult i64 %x, %y
ret i1 %ov
}
define i1 @usubo_ult_i64_math_overflow_used(i64 %x, i64 %y, ptr %p) {
; CHECK-LABEL: @usubo_ult_i64_math_overflow_used(
; CHECK-NEXT: [[S:%.*]] = sub i64 [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT: store i64 [[S]], ptr [[P:%.*]]
; CHECK-NEXT: [[OV:%.*]] = icmp ult i64 [[X]], [[Y]]
; CHECK-NEXT: ret i1 [[OV]]
;
%s = sub i64 %x, %y
store i64 %s, ptr %p
%ov = icmp ult i64 %x, %y
ret i1 %ov
}
; Check that every instruction inserted by -passes='require<profile-summary>,function(codegenprepare)' has a debug location.
; DEBUG: CheckModuleDebugify: PASS
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