mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-02 09:29:24 +00:00
be8cc2a3de
Massive check in. This changes the "-fast" flag to "-O#" in llc. If you want to use the old behavior, the flag is -O0. This change allows for finer-grained control over which optimizations are run at different -O levels. Most of this work was pretty mechanical. The majority of the fixes came from verifying that a "fast" variable wasn't used anymore. The JIT still uses a "Fast" flag. I'll change the JIT with a follow-up patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70343 91177308-0d34-0410-b5e6-96231b3b80d8
76 lines
2.4 KiB
LLVM
76 lines
2.4 KiB
LLVM
; RUN: llvm-as < %s | llc -march=x86 | grep {jo} | count 2
|
|
; RUN: llvm-as < %s | llc -march=x86 | grep {jb} | count 2
|
|
; RUN: llvm-as < %s | llc -march=x86 -O0 | grep {jo} | count 2
|
|
; RUN: llvm-as < %s | llc -march=x86 -O0 | grep {jb} | count 2
|
|
|
|
@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 %carry, 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
|
|
|
|
carry:
|
|
%t2 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8]* @no, i32 0, i32 0) ) nounwind
|
|
ret i1 false
|
|
}
|
|
|
|
define i1 @func3() nounwind {
|
|
entry:
|
|
%t = call {i32, i1} @llvm.sadd.with.overflow.i32(i32 0, i32 0)
|
|
%sum = extractvalue {i32, i1} %t, 0
|
|
%obit = extractvalue {i32, 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 %sum ) 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
|
|
}
|
|
|
|
define i1 @func4() nounwind {
|
|
entry:
|
|
%t = call {i32, i1} @llvm.uadd.with.overflow.i32(i32 0, i32 0)
|
|
%sum = extractvalue {i32, i1} %t, 0
|
|
%obit = extractvalue {i32, 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 %sum ) 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 {i32, i1} @llvm.sadd.with.overflow.i32(i32, i32)
|
|
declare {i32, i1} @llvm.uadd.with.overflow.i32(i32, i32)
|