Displaying 2 results from an estimated 2 matches for "foo_optimized".
2006 Sep 03
0
[LLVMdev] llvm-gcc4: Enable various optimizations at -O1/-O2
Hi All,
I have installed llvm-gcc4 patch to enable various llvm optimizations
at -O1/-O2/-O3.
This means instead of
$ llvm-gcc4 --emit-llvm foo.c -o foo.bc
$ opt foo.bc -o foo_optimized.bc
$ llc foo_optimized.bc -o foo.o
One can directly use
$ llvm-gcc4 -O2 foo.c -o foo.o
to get optimized foo.o
-
Devang
+
+ if (optimize > 0) {
+
+
+ PerModulePasses->add(createRaiseAllocationsPass()); // call %
malloc -> malloc inst
+ PerModulePasses->add(createCFGSimpl...
2008 Jun 11
1
[LLVMdev] question on constant folding
...oo() {
double i,j;
double sum = 0;
for (i=0; i<100; i++) {
sum += i;
for (j=0; j<100; j++)
sum += 2;
}
return sum;
}
-------------------------------------------------------------
$llvm-gcc -O4 -emit-llvm foo.c -c -o foo.bc
$opt -std-compile-opts -reg2mem foo.bc -o foo_optimized.bc
gave me a really long LLVM IR code with many basic blocks..
However, when I just changed the types to 'long' as follows:
-------------------------------------------------------------
long foo() {
long i,j;
long sum = 0;
for (i=0; i<100; i++)
{
sum += i;
for (j=0; j...