Displaying 3 results from an estimated 3 matches for "floatsize".
2010 Aug 31
0
[LLVMdev] "equivalent" .ll files diverge after optimizations are applied
Using MM registers is wrong unless the user has specifically asked for
it, which doesn't seem to be the case here.
In the awesome MMX architecture, touching an MM register makes
subsequent x87 operations fail unless an EMMS instruction is issued
first; none of the compilers here are smart enough to insert EMMS
instructions in the right places, so the only safe thing is not to use
2010 Aug 31
2
[LLVMdev] "equivalent" .ll files diverge after optimizations are applied
...pile-opts unopt-pass.ll -o - | llvm-dis -o -
[...]
define %3 @_ZN7WebCore15GraphicsContext19roundToDevicePixelsERKNS_9FloatRectE(%"class.WebCore::GraphicsContext"* %this, %"struct.WebCore::FloatRect"* %rect) nounwind ssp align 2 {
%roundedOrigin = alloca %"class.WebCore::FloatSize", align 4 ; <%"class.WebCore::FloatSize"*> [#uses=3]
%roundedLowerRight = alloca %"class.WebCore::FloatSize", align 4 ; <%"class.WebCore::FloatSize"*> [#uses=3]
%1 = getelementptr inbounds %"class.WebCore::FloatSize"* %roundedOrigin, i64...
2010 Aug 31
5
[LLVMdev] "equivalent" .ll files diverge after optimizations are applied
Hi,
I've attached 2 .ll files which are supposed to be equivalent but 'unopt-fail.ll' causes a crash in webkit's test suite while 'unopt-pass.ll' does not. I can't give more details about the crash, when I run the crashing test it in isolation it passes, when I run the full suite it crashes; it boggles the mind.
Below I provide the optimized asm that is produced from