mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-11-03 14:21:30 +00:00
ab0c578bfd
for promoted integer types, eg: i16 on ppc-32, or i24 on any platform. Complete support for arbitrary precision integers would require handling expanded integer types, eg: i128, but I couldn't be bothered. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60834 91177308-0d34-0410-b5e6-96231b3b80d8
43 lines
1.4 KiB
LLVM
43 lines
1.4 KiB
LLVM
; RUN: llvm-as < %s | llc
|
|
|
|
@ok = internal constant [4 x i8] c"%d\0A\00"
|
|
@no = internal constant [4 x i8] c"no\0A\00"
|
|
|
|
define i1 @func1(i24 signext %v1, i24 signext %v2) nounwind {
|
|
entry:
|
|
%t = call {i24, i1} @llvm.sadd.with.overflow.i24(i24 %v1, i24 %v2)
|
|
%sum = extractvalue {i24, i1} %t, 0
|
|
%sum32 = sext i24 %sum to i32
|
|
%obit = extractvalue {i24, i1} %t, 1
|
|
br i1 %obit, label %overflow, label %normal
|
|
|
|
normal:
|
|
%t1 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8]* @ok, i32 0, i32 0), i32 %sum32 ) nounwind
|
|
ret i1 true
|
|
|
|
overflow:
|
|
%t2 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8]* @no, i32 0, i32 0) ) nounwind
|
|
ret i1 false
|
|
}
|
|
|
|
define i1 @func2(i24 zeroext %v1, i24 zeroext %v2) nounwind {
|
|
entry:
|
|
%t = call {i24, i1} @llvm.uadd.with.overflow.i24(i24 %v1, i24 %v2)
|
|
%sum = extractvalue {i24, i1} %t, 0
|
|
%sum32 = zext i24 %sum to i32
|
|
%obit = extractvalue {i24, i1} %t, 1
|
|
br i1 %obit, label %carry, label %normal
|
|
|
|
normal:
|
|
%t1 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8]* @ok, i32 0, i32 0), i32 %sum32 ) nounwind
|
|
ret i1 true
|
|
|
|
carry:
|
|
%t2 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8]* @no, i32 0, i32 0) ) nounwind
|
|
ret i1 false
|
|
}
|
|
|
|
declare i32 @printf(i8*, ...) nounwind
|
|
declare {i24, i1} @llvm.sadd.with.overflow.i24(i24, i24)
|
|
declare {i24, i1} @llvm.uadd.with.overflow.i24(i24, i24)
|