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; RUN: llc < %s -mtriple=arm-eabi -mcpu=generic | FileCheck %s
define i32 @sadd(i32 %a, i32 %b) local_unnamed_addr #0 {
; CHECK-LABEL: sadd:
; CHECK: mov r[[R0:[0-9]+]], r0
; CHECK-NEXT: add r[[R1:[0-9]+]], r[[R0]], r1
; CHECK-NEXT: cmp r[[R1]], r[[R0]]
; CHECK-NEXT: movvc pc, lr
entry:
%0 = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %a, i32 %b)
%1 = extractvalue { i32, i1 } %0, 1
br i1 %1, label %trap, label %cont
trap:
tail call void @llvm.trap() #2
unreachable
cont:
%2 = extractvalue { i32, i1 } %0, 0
ret i32 %2
}
define i32 @uadd(i32 %a, i32 %b) local_unnamed_addr #0 {
; CHECK-LABEL: uadd:
; CHECK: mov r[[R0:[0-9]+]], r0
; CHECK-NEXT: adds r[[R1:[0-9]+]], r[[R0]], r1
; CHECK-NEXT: cmp r[[R1]], r[[R0]]
; CHECK-NEXT: movhs pc, lr
entry:
%0 = tail call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 %a, i32 %b)
%1 = extractvalue { i32, i1 } %0, 1
br i1 %1, label %trap, label %cont
trap:
tail call void @llvm.trap() #2
unreachable
cont:
%2 = extractvalue { i32, i1 } %0, 0
ret i32 %2
}
define i32 @ssub(i32 %a, i32 %b) local_unnamed_addr #0 {
; CHECK-LABEL: ssub:
; CHECK: cmp r0, r1
; CHECK-NEXT: subvc r0, r0, r1
; CHECK-NEXT: movvc pc, lr
entry:
%0 = tail call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 %a, i32 %b)
%1 = extractvalue { i32, i1 } %0, 1
br i1 %1, label %trap, label %cont
trap:
tail call void @llvm.trap() #2
unreachable
cont:
%2 = extractvalue { i32, i1 } %0, 0
ret i32 %2
}
define i32 @usub(i32 %a, i32 %b) local_unnamed_addr #0 {
; CHECK-LABEL: usub:
; CHECK: mov r[[R0:[0-9]+]], r0
; CHECK-NEXT: subs r[[R1:[0-9]+]], r[[R0]], r1
; CHECK-NEXT: cmp r[[R0]], r1
; CHECK-NEXT: movhs pc, lr
entry:
%0 = tail call { i32, i1 } @llvm.usub.with.overflow.i32(i32 %a, i32 %b)
%1 = extractvalue { i32, i1 } %0, 1
br i1 %1, label %trap, label %cont
trap:
tail call void @llvm.trap() #2
unreachable
cont:
%2 = extractvalue { i32, i1 } %0, 0
ret i32 %2
}
define void @sum(i32* %a, i32* %b, i32 %n) local_unnamed_addr #0 {
; CHECK-LABEL: sum:
; CHECK: ldr [[R0:r[0-9]+]],
; CHECK-NEXT: ldr [[R1:r[0-9]+|lr]],
; CHECK-NEXT: add [[R2:r[0-9]+]], [[R1]], [[R0]]
; CHECK-NEXT: cmp [[R2]], [[R1]]
; CHECK-NEXT: strvc [[R2]],
; CHECK-NEXT: addvc
; CHECK-NEXT: cmpvc
; CHECK-NEXT: bvs
entry:
%cmp7 = icmp eq i32 %n, 0
br i1 %cmp7, label %for.cond.cleanup, label %for.body
for.cond.cleanup:
ret void
for.body:
%i.08 = phi i32 [ %7, %cont2 ], [ 0, %entry ]
%arrayidx = getelementptr inbounds i32, i32* %b, i32 %i.08
%0 = load i32, i32* %arrayidx, align 4
%arrayidx1 = getelementptr inbounds i32, i32* %a, i32 %i.08
%1 = load i32, i32* %arrayidx1, align 4
%2 = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %1, i32 %0)
%3 = extractvalue { i32, i1 } %2, 1
br i1 %3, label %trap, label %cont
trap:
tail call void @llvm.trap() #2
unreachable
cont:
%4 = extractvalue { i32, i1 } %2, 0
store i32 %4, i32* %arrayidx1, align 4
%5 = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %i.08, i32 1)
%6 = extractvalue { i32, i1 } %5, 1
br i1 %6, label %trap, label %cont2
cont2:
%7 = extractvalue { i32, i1 } %5, 0
%cmp = icmp eq i32 %7, %n
br i1 %cmp, label %for.cond.cleanup, label %for.body
}
declare void @llvm.trap() #2
declare { i32, i1 } @llvm.sadd.with.overflow.i32(i32, i32) #1
declare { i32, i1 } @llvm.uadd.with.overflow.i32(i32, i32) #1
declare { i32, i1 } @llvm.ssub.with.overflow.i32(i32, i32) #1
declare { i32, i1 } @llvm.usub.with.overflow.i32(i32, i32) #1
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