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