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convertToSignExtendedInteger should return opInvalidOp instead of asserting if sematics of float does not allow arithmetics.

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llvm-svn: 60042
This commit is contained in:
Evan Cheng 2008-11-25 19:00:29 +00:00
parent 3b8c028a43
commit c11d7e324f
2 changed files with 18 additions and 1 deletions
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8
lib/Support/APFloat.cpp
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@ -117,6 +117,11 @@ namespace {
&& "Compile-time arithmetic does not support these semantics");
}
static inline bool
isArithmeticOk(const llvm::fltSemantics &semantics) {
return semantics.arithmeticOK;
}
/* Return the value of a decimal exponent of the form
[+-]ddddddd.
@ -1787,7 +1792,8 @@ APFloat::convertToSignExtendedInteger(integerPart *parts, unsigned int width,
const integerPart *src;
unsigned int dstPartsCount, truncatedBits;
assertArithmeticOK(*semantics);
if (!isArithmeticOk(*semantics))
return opInvalidOp;
*isExact = false;

11
test/Transforms/IndVarsSimplify/2008-11-25-APFloatAssert.ll Normal file
View File

@ -0,0 +1,11 @@
; RUN: llvm-as < %s | opt -indvars
define void @t() nounwind {
entry:
br label %bb23.i91
bb23.i91: ; preds = %bb23.i91, %entry
%result.0.i89 = phi ppc_fp128 [ 0xM00000000000000000000000000000000, %entry ], [ %0, %bb23.i91 ] ; <ppc_fp128> [#uses=2]
%0 = mul ppc_fp128 %result.0.i89, %result.0.i89 ; <ppc_fp128> [#uses=1]
br label %bb23.i91
}