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Add new test case for addcarry. NFC.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301932 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Amaury Sechet 2017-05-02 16:07:32 +00:00
parent a2057043bd
commit 20c757b9a3
1 changed files with 18 additions and 0 deletions
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18
test/CodeGen/X86/adde-carry.ll → test/CodeGen/X86/addcarry.ll
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@ -186,3 +186,21 @@ entry:
store i32 %19, i32* %15, align 4
ret void
}
define i64 @shiftadd(i64 %a, i64 %b, i64 %c, i64 %d) {
; CHECK-LABEL: shiftadd:
; CHECK: # BB#0: # %entry
; CHECK-NEXT: leaq (%rdx,%rcx), %rax
; CHECK-NEXT: addq %rsi, %rdi
; CHECK-NEXT: adcq $0, %rax
; CHECK-NEXT: retq
entry:
%0 = zext i64 %a to i128
%1 = zext i64 %b to i128
%2 = add i128 %0, %1
%3 = lshr i128 %2, 64
%4 = trunc i128 %3 to i64
%5 = add i64 %c, %d
%6 = add i64 %4, %5
ret i64 %6
}