83b484b3be
implement the real int/fp conversions
...
llvm-svn: 39596
2007-06-06 04:39:08 +00:00
cf106ab42a
implement support for casts to/from pointers.
...
llvm-svn: 39595
2007-06-06 04:05:39 +00:00
8394d795c3
implement codegen of a bunch more loop constructs and most expressions
...
llvm-svn: 39593
2007-06-05 20:53:16 +00:00
946aa31f02
implement codegen of while stmts and lvalue evaluation of paren exprs :)
...
llvm-svn: 39582
2007-06-05 03:59:43 +00:00
b16f455e8c
Type::isSignedInteger() and isUnsignedInteger() did not properly account for
...
'char', which varies based on the target.
Instead of spreading target knowledge throughout the compiler, bifurcate char
into Char_S and Char_U, and have ASTContext create the right one based on the
target, when it starts up.
llvm-svn: 39577
2007-06-03 07:25:34 +00:00
cf25024828
Implement EmitUsualArithmeticConversions, so we can add shorts to floats and
...
ints to long long etc. For int to longlong, we now get:
%tmp = load i64* %F ; <i64> [#uses=1]
%tmp1 = load i32* %D ; <i32> [#uses=1]
%promote = sext i32 %tmp1 to i64 ; <i64> [#uses=1]
%tmp2 = add i64 %tmp, %promote ; <i64> [#uses=0]
llvm-svn: 39576
2007-06-03 02:02:44 +00:00
c18f9d1aed
Change EmitUsualArithmeticConversions to use EmitExprWithUsualUnaryConversions.
...
This allows us to compile:
register short X;
{
int Y;
return 1+X+Y;
into:
%tmp = load i16* %X ; <i16> [#uses=1]
%promote = sext i16 %tmp to i32 ; <i32> [#uses=1]
%tmp1 = add i32 1, %promote ; <i32> [#uses=1]
%tmp2 = load i32* %Y ; <i32> [#uses=1]
%tmp3 = add i32 %tmp1, %tmp2 ; <i32> [#uses=1]
ret i32 %tmp3
Look at the amazing sign extension, so much happier than an assertion failure. :)
llvm-svn: 39565
2007-06-02 22:51:30 +00:00
6db1fb845a
implement a first hack at codegen'ing the usual unary conversions.
...
This allows us to compile:
int func() {
int A[10];
if (!A) {
to:
define i32 @func() {
entry:
%A = alloca [10 x i32] ; <[10 x i32]*> [#uses=1]
%arraydecay = getelementptr [10 x i32]* %A, i32 0, i32 0 ; <i32*> [#uses=1]
%tobool = icmp ne i32* %arraydecay, null ; <i1> [#uses=1]
%lnot = xor i1 %tobool, true ; <i1> [#uses=1]
br i1 %lnot, label %ifthen, label %ifend
-Chris
llvm-svn: 39564
2007-06-02 22:49:07 +00:00
a45c5af87b
Implement a trivial optimization to reduce the number of compares emitted.
...
For:
register short X;
if (!X) {
We now produce:
%tmp = load i16* %X ; <i16> [#uses=1]
%tobool = icmp ne i16 %tmp, 0 ; <i1> [#uses=1]
%lnot = xor i1 %tobool, true ; <i1> [#uses=1]
br i1 %lnot, label %ifthen, label %ifend
instead of:
%tmp = load i16* %X ; <i16> [#uses=1]
%tobool = icmp ne i16 %tmp, 0 ; <i1> [#uses=1]
%lnot = xor i1 %tobool, true ; <i1> [#uses=1]
%lnot.ext = zext i1 %lnot to i32 ; <i32> [#uses=1]
%tobool1 = icmp ne i32 %lnot.ext, 0 ; <i1> [#uses=1]
br i1 %tobool1, label %ifthen, label %ifend
llvm-svn: 39560
2007-06-02 19:47:04 +00:00
f0106d2578
Refactor EvaluateScalarValueToBool out of if statement emission, so it can
...
be shared.
Implement infrastructure for unary operator emission.
Implement basic logical not support. We now compile:
register short X;
if (!X) {
into:
%tmp = load i16* %X ; <i16> [#uses=1]
%tobool = icmp ne i16 %tmp, 0 ; <i1> [#uses=1]
%lnot = xor i1 %tobool, true ; <i1> [#uses=1]
zext i1 %lnot to i32 ; <i32>:0 [#uses=1]
%tobool1 = icmp ne i32 %0, 0 ; <i1> [#uses=1]
br i1 %tobool1, label %ifthen, label %ifend
llvm-svn: 39559
2007-06-02 19:33:17 +00:00
d7f58867e5
Implement scaffolding for lvalues. Implement block vardecl lvalues.
...
This allows us to translate:
int func() {
register int X;
{
int Y;
return 1+X+Y;
}
}
into:
define i32 @func() {
entry:
%X = alloca i32 ; <i32*> [#uses=1]
%Y = alloca i32 ; <i32*> [#uses=1]
%allocapt = bitcast i32 undef to i32 ; <i32> [#uses=0]
%tmp = load i32* %X ; <i32> [#uses=1]
%tmp1 = add i32 1, %tmp ; <i32> [#uses=1]
%tmp2 = load i32* %Y ; <i32> [#uses=1]
%tmp3 = add i32 %tmp1, %tmp2 ; <i32> [#uses=1]
ret i32 %tmp3
; No predecessors!
ret i32 undef
}
llvm-svn: 39555
2007-06-02 05:24:33 +00:00
db91b16755
stub out codegen of binary plus. We now compile:
...
if (11 + 42) {
to:
%tmp = add i32 11, 42 ; <i32> [#uses=1]
%tobool = icmp ne i32 %tmp, 0 ; <i1> [#uses=1]
br i1 %tobool, label %ifthen, label %ifend
but this doesn't handle any of the interesting/hard stuff yet.
llvm-svn: 39545
2007-06-02 00:16:28 +00:00
e47e440c42
split stmt/expr codegen into their own files.
...
llvm-svn: 39540
2007-06-01 18:02:12 +00:00
Chris Lattner