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TheRock/compiler/amd-llvm/llvm/test/CodeGen/M68k/Arith/add-with-overflow.ll
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76 lines
2.0 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=m68k-linux -verify-machineinstrs | FileCheck %s
declare {i32, i1} @llvm.sadd.with.overflow.i32(i32, i32)
declare {i32, i1} @llvm.uadd.with.overflow.i32(i32, i32)
define fastcc i32 @test5(i32 %v1, i32 %v2, ptr %X) nounwind {
; CHECK-LABEL: test5:
; CHECK: ; %bb.0: ; %entry
; CHECK-NEXT: add.l %d1, %d0
; CHECK-NEXT: bvs .LBB0_2
; CHECK-NEXT: ; %bb.1: ; %normal
; CHECK-NEXT: move.l #0, (%a0)
; CHECK-NEXT: .LBB0_2: ; %overflow
; CHECK-NEXT: rts
entry:
%t = call {i32, i1} @llvm.sadd.with.overflow.i32(i32 %v1, i32 %v2)
%sum = extractvalue {i32, i1} %t, 0
%obit = extractvalue {i32, i1} %t, 1
br i1 %obit, label %overflow, label %normal
normal:
store i32 0, ptr %X
br label %overflow
overflow:
ret i32 %sum
}
define fastcc i1 @test6(i32 %v1, i32 %v2, ptr %X) nounwind {
; CHECK-LABEL: test6:
; CHECK: ; %bb.0: ; %entry
; CHECK-NEXT: add.l %d1, %d0
; CHECK-NEXT: bcs .LBB1_2
; CHECK-NEXT: ; %bb.1: ; %normal
; CHECK-NEXT: move.l #0, (%a0)
; CHECK-NEXT: .LBB1_2: ; %carry
; CHECK-NEXT: moveq #0, %d0
; CHECK-NEXT: rts
entry:
%t = call {i32, i1} @llvm.uadd.with.overflow.i32(i32 %v1, i32 %v2)
%sum = extractvalue {i32, i1} %t, 0
%obit = extractvalue {i32, i1} %t, 1
br i1 %obit, label %carry, label %normal
normal:
store i32 0, ptr %X
br label %carry
carry:
ret i1 false
}
define {i32, i1} @test7(i32 %v1, i32 %v2) nounwind {
; CHECK-LABEL: test7:
; CHECK: ; %bb.0:
; CHECK-NEXT: move.l (4,%sp), %d0
; CHECK-NEXT: add.l (8,%sp), %d0
; CHECK-NEXT: scs %d1
; CHECK-NEXT: rts
%t = call {i32, i1} @llvm.uadd.with.overflow.i32(i32 %v1, i32 %v2)
ret {i32, i1} %t
}
define fastcc i1 @test10(i32 %x) nounwind {
; CHECK-LABEL: test10:
; CHECK: ; %bb.0: ; %entry
; CHECK-NEXT: add.l #1, %d0
; CHECK-NEXT: svs %d0
; CHECK-NEXT: rts
entry:
%t = call {i32, i1} @llvm.sadd.with.overflow.i32(i32 %x, i32 1)
%obit = extractvalue {i32, i1} %t, 1
ret i1 %obit
}