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fixes from Ryan Brown.

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llvm-svn: 43747
This commit is contained in:
Chris Lattner 2007-11-06 01:39:12 +00:00
parent 4822abbbd1
commit d0d6643883
7 changed files with 59 additions and 50 deletions
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2
docs/tutorial/LangImpl1.html
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@ -232,7 +232,7 @@ if you typed in "1.23". Feel free to extend it :). Next we handle comments:
</pre>
</div>
<p>We handle comments by skipping to the end of the line and then returning the
<p>We handle comments by skipping to the end of the line and then return the
next comment. Finally, if the input doesn't match one of the above cases, it is
either an operator character like '+' or the end of the file. These are handled with
this code:</p>

36
docs/tutorial/LangImpl2.html
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@ -325,16 +325,18 @@ static ExprAST *ParseIdentifierExpr() {
// Call.
getNextToken(); // eat (
std::vector&lt;ExprAST*&gt; Args;
while (1) {
ExprAST *Arg = ParseExpression();
if (!Arg) return 0;
Args.push_back(Arg);
if (CurTok != ')') {
while (1) {
ExprAST *Arg = ParseExpression();
if (!Arg) return 0;
Args.push_back(Arg);
if (CurTok == ')') break;
if (CurTok == ')') break;
if (CurTok != ',')
return Error("Expected ')'");
getNextToken();
if (CurTok != ',')
return Error("Expected ')'");
getNextToken();
}
}
// Eat the ')'.
@ -985,16 +987,18 @@ static ExprAST *ParseIdentifierExpr() {
// Call.
getNextToken(); // eat (
std::vector&lt;ExprAST*&gt; Args;
while (1) {
ExprAST *Arg = ParseExpression();
if (!Arg) return 0;
Args.push_back(Arg);
if (CurTok != ')') {
while (1) {
ExprAST *Arg = ParseExpression();
if (!Arg) return 0;
Args.push_back(Arg);
if (CurTok == ')') break;
if (CurTok == ')') break;
if (CurTok != ',')
return Error("Expected ')'");
getNextToken();
if (CurTok != ',')
return Error("Expected ')'");
getNextToken();
}
}
// Eat the ')'.

22
docs/tutorial/LangImpl3.html
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@ -192,7 +192,7 @@ Value *BinaryExprAST::Codegen() {
case '-': return Builder.CreateSub(L, R, "subtmp");
case '*': return Builder.CreateMul(L, R, "multmp");
case '&lt;':
L = Builder.CreateFCmpULT(L, R, "multmp");
L = Builder.CreateFCmpULT(L, R, "cmptmp");
// Convert bool 0/1 to double 0.0 or 1.0
return Builder.CreateUIToFP(L, Type::DoubleTy, "booltmp");
default: return ErrorV("invalid binary operator");
@ -860,16 +860,18 @@ static ExprAST *ParseIdentifierExpr() {
// Call.
getNextToken(); // eat (
std::vector&lt;ExprAST*&gt; Args;
while (1) {
ExprAST *Arg = ParseExpression();
if (!Arg) return 0;
Args.push_back(Arg);
if (CurTok != ')') {
while (1) {
ExprAST *Arg = ParseExpression();
if (!Arg) return 0;
Args.push_back(Arg);
if (CurTok == ')') break;
if (CurTok == ')') break;
if (CurTok != ',')
return Error("Expected ')'");
getNextToken();
if (CurTok != ',')
return Error("Expected ')'");
getNextToken();
}
}
// Eat the ')'.
@ -1034,7 +1036,7 @@ Value *BinaryExprAST::Codegen() {
case '-': return Builder.CreateSub(L, R, "subtmp");
case '*': return Builder.CreateMul(L, R, "multmp");
case '&lt;':
L = Builder.CreateFCmpULT(L, R, "multmp");
L = Builder.CreateFCmpULT(L, R, "cmptmp");
// Convert bool 0/1 to double 0.0 or 1.0
return Builder.CreateUIToFP(L, Type::DoubleTy, "booltmp");
default: return ErrorV("invalid binary operator");

20
docs/tutorial/LangImpl4.html
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@ -715,16 +715,18 @@ static ExprAST *ParseIdentifierExpr() {
// Call.
getNextToken(); // eat (
std::vector&lt;ExprAST*&gt; Args;
while (1) {
ExprAST *Arg = ParseExpression();
if (!Arg) return 0;
Args.push_back(Arg);
if (CurTok != ')') {
while (1) {
ExprAST *Arg = ParseExpression();
if (!Arg) return 0;
Args.push_back(Arg);
if (CurTok == ')') break;
if (CurTok == ')') break;
if (CurTok != ',')
return Error("Expected ')'");
getNextToken();
if (CurTok != ',')
return Error("Expected ')'");
getNextToken();
}
}
// Eat the ')'.
@ -890,7 +892,7 @@ Value *BinaryExprAST::Codegen() {
case '-': return Builder.CreateSub(L, R, "subtmp");
case '*': return Builder.CreateMul(L, R, "multmp");
case '&lt;':
L = Builder.CreateFCmpULT(L, R, "multmp");
L = Builder.CreateFCmpULT(L, R, "cmptmp");
// Convert bool 0/1 to double 0.0 or 1.0
return Builder.CreateUIToFP(L, Type::DoubleTy, "booltmp");
default: return ErrorV("invalid binary operator");

11
docs/tutorial/LangImpl5.html
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@ -319,7 +319,7 @@ block. In this case, if control comes in from the "then" block, it gets the
value of "calltmp". If control comes from the "else" block, it gets the value
of "calltmp1".</p>
<p>At this point, you are probably starting to think "on no! this means my
<p>At this point, you are probably starting to think "oh no! this means my
simple and elegant front-end will have to start generating SSA form in order to
use LLVM!". Fortunately, this is not the case, and we strongly advise
<em>not</em> implementing an SSA construction algorithm in your front-end
@ -679,8 +679,8 @@ loop: ; preds = %loop, %entry
%nextvar = add double %i, 1.000000e+00
; termination test
%multmp = fcmp ult double %i, %n
%booltmp = uitofp i1 %multmp to double
%cmptmp = fcmp ult double %i, %n
%booltmp = uitofp i1 %cmptmp to double
%loopcond = fcmp one double %booltmp, 0.000000e+00
br i1 %loopcond, label %loop, label %afterloop
@ -871,7 +871,8 @@ that is what we return from <tt>ForExprAST::Codegen</tt>.</p>
the tutorial. We added two control flow constructs, and used them to motivate
a couple of aspects of the LLVM IR that are important for front-end implementors
to know. In the next chapter of our saga, we will get a bit crazier and add
operator overloading to our poor innocent language.</p>
<a href="LangImpl6.html">user-defined operators</a> to our poor innocent
language.</p>
</div>
@ -1378,7 +1379,7 @@ Value *BinaryExprAST::Codegen() {
case '-': return Builder.CreateSub(L, R, "subtmp");
case '*': return Builder.CreateMul(L, R, "multmp");
case '&lt;':
L = Builder.CreateFCmpULT(L, R, "multmp");
L = Builder.CreateFCmpULT(L, R, "cmptmp");
// Convert bool 0/1 to double 0.0 or 1.0
return Builder.CreateUIToFP(L, Type::DoubleTy, "booltmp");
default: return ErrorV("invalid binary operator");

4
docs/tutorial/LangImpl6.html
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@ -280,7 +280,7 @@ Value *BinaryExprAST::Codegen() {
case '-': return Builder.CreateSub(L, R, "subtmp");
case '*': return Builder.CreateMul(L, R, "multmp");
case '&lt;':
L = Builder.CreateFCmpULT(L, R, "multmp");
L = Builder.CreateFCmpULT(L, R, "cmptmp");
// Convert bool 0/1 to double 0.0 or 1.0
return Builder.CreateUIToFP(L, Type::DoubleTy, "booltmp");
<b>default: break;</b>
@ -1396,7 +1396,7 @@ Value *BinaryExprAST::Codegen() {
case '-': return Builder.CreateSub(L, R, "subtmp");
case '*': return Builder.CreateMul(L, R, "multmp");
case '&lt;':
L = Builder.CreateFCmpULT(L, R, "multmp");
L = Builder.CreateFCmpULT(L, R, "cmptmp");
// Convert bool 0/1 to double 0.0 or 1.0
return Builder.CreateUIToFP(L, Type::DoubleTy, "booltmp");
default: break;

14
docs/tutorial/LangImpl7.html
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@ -546,8 +546,8 @@ entry:
<b>%x1 = alloca double
store double %x, double* %x1
%x2 = load double* %x1</b>
%multmp = fcmp ult double %x2, 3.000000e+00
%booltmp = uitofp i1 %multmp to double
%cmptmp = fcmp ult double %x2, 3.000000e+00
%booltmp = uitofp i1 %cmptmp to double
%ifcond = fcmp one double %booltmp, 0.000000e+00
br i1 %ifcond, label %then, label %else
@ -585,8 +585,8 @@ PHI node for it, so we still just make the PHI.</p>
<pre>
define double @fib(double %x) {
entry:
%multmp = fcmp ult double <b>%x</b>, 3.000000e+00
%booltmp = uitofp i1 %multmp to double
%cmptmp = fcmp ult double <b>%x</b>, 3.000000e+00
%booltmp = uitofp i1 %cmptmp to double
%ifcond = fcmp one double %booltmp, 0.000000e+00
br i1 %ifcond, label %then, label %else
@ -618,8 +618,8 @@ such blatent inefficiencies :).</p>
<pre>
define double @fib(double %x) {
entry:
%multmp = fcmp ult double %x, 3.000000e+00
%booltmp = uitofp i1 %multmp to double
%cmptmp = fcmp ult double %x, 3.000000e+00
%booltmp = uitofp i1 %cmptmp to double
%ifcond = fcmp ueq double %booltmp, 0.000000e+00
br i1 %ifcond, label %else, label %ifcont
@ -1674,7 +1674,7 @@ Value *BinaryExprAST::Codegen() {
case '-': return Builder.CreateSub(L, R, "subtmp");
case '*': return Builder.CreateMul(L, R, "multmp");
case '&lt;':
L = Builder.CreateFCmpULT(L, R, "multmp");
L = Builder.CreateFCmpULT(L, R, "cmptmp");
// Convert bool 0/1 to double 0.0 or 1.0
return Builder.CreateUIToFP(L, Type::DoubleTy, "booltmp");
default: break;