derek.holloway
7502bf64a4
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207 lines
6.4 KiB
LLVM
207 lines
6.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
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; RUN: llc -mtriple=aarch64-linux-gnu -O2 -o - %s | FileCheck %s
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define i64 @test_ssub_nonneg_rhs(i64 %x) {
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; CHECK-LABEL: test_ssub_nonneg_rhs:
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; CHECK: // %bb.0:
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; CHECK-NEXT: mov x8, #-9223372036854775808 // =0x8000000000000000
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; CHECK-NEXT: subs x9, x0, #1
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; CHECK-NEXT: csel x0, x8, x9, vs
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; CHECK-NEXT: ret
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%sat = call i64 @llvm.ssub.sat.i64(i64 %x, i64 1)
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ret i64 %sat
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}
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define i64 @test_ssub_neg_rhs(i64 %x) {
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; CHECK-LABEL: test_ssub_neg_rhs:
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; CHECK: // %bb.0:
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; CHECK-NEXT: mov x8, #9223372036854775807 // =0x7fffffffffffffff
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; CHECK-NEXT: adds x9, x0, #1
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; CHECK-NEXT: csel x0, x8, x9, vs
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; CHECK-NEXT: ret
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%sat = call i64 @llvm.ssub.sat.i64(i64 %x, i64 -1)
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ret i64 %sat
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}
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define i64 @test_sadd_nonneg_rhs(i64 %x) {
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; CHECK-LABEL: test_sadd_nonneg_rhs:
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; CHECK: // %bb.0:
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; CHECK-NEXT: mov x8, #9223372036854775807 // =0x7fffffffffffffff
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; CHECK-NEXT: adds x9, x0, #1
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; CHECK-NEXT: csel x0, x8, x9, vs
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; CHECK-NEXT: ret
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%sat = call i64 @llvm.sadd.sat.i64(i64 %x, i64 1)
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ret i64 %sat
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}
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define i64 @test_sadd_neg_rhs(i64 %x) {
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; CHECK-LABEL: test_sadd_neg_rhs:
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; CHECK: // %bb.0:
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; CHECK-NEXT: mov x8, #-9223372036854775808 // =0x8000000000000000
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; CHECK-NEXT: subs x9, x0, #1
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; CHECK-NEXT: csel x0, x8, x9, vs
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; CHECK-NEXT: ret
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%sat = call i64 @llvm.sadd.sat.i64(i64 %x, i64 -1)
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ret i64 %sat
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}
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define i64 @test_ssub_nonneg_lhs(i64 %x) {
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; CHECK-LABEL: test_ssub_nonneg_lhs:
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; CHECK: // %bb.0:
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; CHECK-NEXT: mov w8, #1 // =0x1
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; CHECK-NEXT: mov x9, #9223372036854775807 // =0x7fffffffffffffff
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; CHECK-NEXT: subs x8, x8, x0
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; CHECK-NEXT: csel x0, x9, x8, vs
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; CHECK-NEXT: ret
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%sat = call i64 @llvm.ssub.sat.i64(i64 1, i64 %x)
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ret i64 %sat
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}
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define i64 @test_ssub_neg_lhs(i64 %x) {
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; CHECK-LABEL: test_ssub_neg_lhs:
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; CHECK: // %bb.0:
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; CHECK-NEXT: mvn x0, x0
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; CHECK-NEXT: ret
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%sat = call i64 @llvm.ssub.sat.i64(i64 -1, i64 %x)
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ret i64 %sat
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}
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define i64 @test_sadd_nonneg_lhs(i64 %x) {
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; CHECK-LABEL: test_sadd_nonneg_lhs:
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; CHECK: // %bb.0:
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; CHECK-NEXT: mov x8, #9223372036854775807 // =0x7fffffffffffffff
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; CHECK-NEXT: adds x9, x0, #1
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; CHECK-NEXT: csel x0, x8, x9, vs
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; CHECK-NEXT: ret
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%sat = call i64 @llvm.sadd.sat.i64(i64 1, i64 %x)
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ret i64 %sat
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}
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define i64 @test_sadd_neg_lhs(i64 %x) {
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; CHECK-LABEL: test_sadd_neg_lhs:
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; CHECK: // %bb.0:
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; CHECK-NEXT: mov x8, #-9223372036854775808 // =0x8000000000000000
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; CHECK-NEXT: subs x9, x0, #1
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; CHECK-NEXT: csel x0, x8, x9, vs
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; CHECK-NEXT: ret
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%sat = call i64 @llvm.sadd.sat.i64(i64 -1, i64 %x)
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ret i64 %sat
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}
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define i64 @test_ssub_nonneg_rhs_nonconst(i64 %x) {
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; CHECK-LABEL: test_ssub_nonneg_rhs_nonconst:
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; CHECK: // %bb.0:
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; CHECK-NEXT: mov w8, #123 // =0x7b
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; CHECK-NEXT: mov x9, #-9223372036854775808 // =0x8000000000000000
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; CHECK-NEXT: and x8, x0, x8
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; CHECK-NEXT: subs x8, x0, x8
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; CHECK-NEXT: csel x0, x9, x8, vs
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; CHECK-NEXT: ret
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%y = and i64 %x, 123
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%sat = call i64 @llvm.ssub.sat.i64(i64 %x, i64 %y)
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ret i64 %sat
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}
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define i64 @test_ssub_neg_rhs_nonconst(i64 %x) {
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; CHECK-LABEL: test_ssub_neg_rhs_nonconst:
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; CHECK: // %bb.0:
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; CHECK-NEXT: cmn x0, #1
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; CHECK-NEXT: mov x8, #9223372036854775807 // =0x7fffffffffffffff
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; CHECK-NEXT: csinv x9, x0, xzr, lt
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; CHECK-NEXT: subs x9, x0, x9
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; CHECK-NEXT: csel x0, x8, x9, vs
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; CHECK-NEXT: ret
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%y = call i64 @llvm.smin(i64 %x, i64 -1)
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%sat = call i64 @llvm.ssub.sat.i64(i64 %x, i64 %y)
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ret i64 %sat
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}
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define i64 @test_sadd_nonneg_rhs_nonconst(i64 %x) {
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; CHECK-LABEL: test_sadd_nonneg_rhs_nonconst:
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; CHECK: // %bb.0:
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; CHECK-NEXT: cmp x0, #1
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; CHECK-NEXT: mov x8, #9223372036854775807 // =0x7fffffffffffffff
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; CHECK-NEXT: csinc x9, x0, xzr, gt
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; CHECK-NEXT: adds x9, x0, x9
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; CHECK-NEXT: csel x0, x8, x9, vs
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; CHECK-NEXT: ret
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%y = call i64 @llvm.smax(i64 %x, i64 1)
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%sat = call i64 @llvm.sadd.sat.i64(i64 %x, i64 %y)
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ret i64 %sat
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}
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define i64 @test_sadd_neg_rhs_nonconst(i64 %x) {
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; CHECK-LABEL: test_sadd_neg_rhs_nonconst:
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; CHECK: // %bb.0:
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; CHECK-NEXT: orr x9, x0, #0x8000000000000000
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; CHECK-NEXT: mov x8, #-9223372036854775808 // =0x8000000000000000
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; CHECK-NEXT: adds x9, x0, x9
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; CHECK-NEXT: csel x0, x8, x9, vs
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; CHECK-NEXT: ret
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%y = or i64 %x, u0x8000000000000000
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%sat = call i64 @llvm.sadd.sat.i64(i64 %x, i64 %y)
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ret i64 %sat
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}
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define i64 @test_ssub_nonneg_lhs_nonconst(i64 %x) {
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; CHECK-LABEL: test_ssub_nonneg_lhs_nonconst:
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; CHECK: // %bb.0:
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; CHECK-NEXT: mov w8, #123 // =0x7b
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; CHECK-NEXT: mov x9, #9223372036854775807 // =0x7fffffffffffffff
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; CHECK-NEXT: and x8, x0, x8
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; CHECK-NEXT: subs x8, x8, x0
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; CHECK-NEXT: csel x0, x9, x8, vs
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; CHECK-NEXT: ret
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%y = and i64 %x, 123
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%sat = call i64 @llvm.ssub.sat.i64(i64 %y, i64 %x)
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ret i64 %sat
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}
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define i64 @test_ssub_neg_lhs_nonconst(i64 %x) {
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; CHECK-LABEL: test_ssub_neg_lhs_nonconst:
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; CHECK: // %bb.0:
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; CHECK-NEXT: cmn x0, #1
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; CHECK-NEXT: mov x8, #-9223372036854775808 // =0x8000000000000000
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; CHECK-NEXT: csinv x9, x0, xzr, lt
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; CHECK-NEXT: subs x9, x9, x0
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; CHECK-NEXT: csel x0, x8, x9, vs
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; CHECK-NEXT: ret
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%y = call i64 @llvm.smin(i64 %x, i64 -1)
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%sat = call i64 @llvm.ssub.sat.i64(i64 %y, i64 %x)
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ret i64 %sat
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}
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define i64 @test_sadd_nonneg_lhs_nonconst(i64 %x) {
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; CHECK-LABEL: test_sadd_nonneg_lhs_nonconst:
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; CHECK: // %bb.0:
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; CHECK-NEXT: cmp x0, #1
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; CHECK-NEXT: mov x8, #9223372036854775807 // =0x7fffffffffffffff
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; CHECK-NEXT: csinc x9, x0, xzr, gt
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; CHECK-NEXT: adds x9, x9, x0
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; CHECK-NEXT: csel x0, x8, x9, vs
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; CHECK-NEXT: ret
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%y = call i64 @llvm.smax(i64 %x, i64 1)
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%sat = call i64 @llvm.sadd.sat.i64(i64 %y, i64 %x)
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ret i64 %sat
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}
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define i64 @test_sadd_neg_lhs_nonconst(i64 %x) {
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; CHECK-LABEL: test_sadd_neg_lhs_nonconst:
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; CHECK: // %bb.0:
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; CHECK-NEXT: orr x9, x0, #0x8000000000000000
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; CHECK-NEXT: mov x8, #-9223372036854775808 // =0x8000000000000000
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; CHECK-NEXT: adds x9, x9, x0
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; CHECK-NEXT: csel x0, x8, x9, vs
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; CHECK-NEXT: ret
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%y = or i64 %x, u0x8000000000000000
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%sat = call i64 @llvm.sadd.sat.i64(i64 %y, i64 %x)
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ret i64 %sat
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}
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declare i64 @llvm.sadd.sat.i64(i64, i64)
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declare i64 @llvm.ssub.sat.i64(i64, i64)
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declare i64 @llvm.smax(i64, i64)
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declare i64 @llvm.smin(i64, i64)
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