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TheRock/compiler/amd-llvm/llvm/test/CodeGen/AArch64/uaddo.ll
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2026-09-02 16:34:47 -07:00

66 lines
1.6 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=aarch64-- | FileCheck %s
; PR31754
; The overflow check may be against the input rather than the sum.
define i1 @uaddo_i64_increment_alt(i64 %x, ptr %p) {
; CHECK-LABEL: uaddo_i64_increment_alt:
; CHECK: // %bb.0:
; CHECK-NEXT: adds x8, x0, #1
; CHECK-NEXT: cset w0, hs
; CHECK-NEXT: str x8, [x1]
; CHECK-NEXT: ret
%a = add i64 %x, 1
store i64 %a, ptr %p
%ov = icmp eq i64 %x, -1
ret i1 %ov
}
; Make sure insertion is done correctly based on dominance.
define i1 @uaddo_i64_increment_alt_dom(i64 %x, ptr %p) {
; CHECK-LABEL: uaddo_i64_increment_alt_dom:
; CHECK: // %bb.0:
; CHECK-NEXT: adds x8, x0, #1
; CHECK-NEXT: cset w0, hs
; CHECK-NEXT: str x8, [x1]
; CHECK-NEXT: ret
%ov = icmp eq i64 %x, -1
%a = add i64 %x, 1
store i64 %a, ptr %p
ret i1 %ov
}
; The overflow check may be against the input rather than the sum.
define i1 @uaddo_i64_decrement_alt(i64 %x, ptr %p) {
; CHECK-LABEL: uaddo_i64_decrement_alt:
; CHECK: // %bb.0:
; CHECK-NEXT: subs x8, x0, #1
; CHECK-NEXT: cset w0, hs
; CHECK-NEXT: str x8, [x1]
; CHECK-NEXT: ret
%a = add i64 %x, -1
store i64 %a, ptr %p
%ov = icmp ne i64 %x, 0
ret i1 %ov
}
; Make sure insertion is done correctly based on dominance.
define i1 @uaddo_i64_decrement_alt_dom(i64 %x, ptr %p) {
; CHECK-LABEL: uaddo_i64_decrement_alt_dom:
; CHECK: // %bb.0:
; CHECK-NEXT: subs x8, x0, #1
; CHECK-NEXT: cset w0, hs
; CHECK-NEXT: str x8, [x1]
; CHECK-NEXT: ret
%ov = icmp ne i64 %x, 0
%a = add i64 %x, -1
store i64 %a, ptr %p
ret i1 %ov
}