mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-13 06:06:27 +00:00
d21c6ef9d0
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59945 91177308-0d34-0410-b5e6-96231b3b80d8
42 lines
1.3 KiB
LLVM
42 lines
1.3 KiB
LLVM
; RUN: llvm-as < %s | llc
|
|
; RUN: llvm-as < %s | llc -fast-isel
|
|
|
|
@ok = internal constant [4 x i8] c"%d\0A\00"
|
|
@no = internal constant [4 x i8] c"no\0A\00"
|
|
|
|
define i1 @func1(i32 %v1, i32 %v2) nounwind {
|
|
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:
|
|
%t1 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8]* @ok, i32 0, i32 0), i32 %sum ) 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(i32 %v1, i32 %v2) nounwind {
|
|
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 %overflow, label %normal
|
|
|
|
normal:
|
|
%t1 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8]* @ok, i32 0, i32 0), i32 %sum ) 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
|
|
}
|
|
|
|
declare i32 @printf(i8*, ...) nounwind
|
|
declare {i32, i1} @llvm.sadd.with.overflow.i32(i32, i32)
|
|
declare {i32, i1} @llvm.uadd.with.overflow.i32(i32, i32)
|