search for: renderboxmodelobject

I attached preprocessed files. $ llvm-g++ gcc-RenderBoxModelObject.ii -fno-exceptions -arch x86_64 -O2 -c -o part.o vs $ clang++ clang-RenderBoxModelObject.ii -fno-exceptions -arch x86_64 -O2 -c -o part.o If I compile with clang, it causes a crash to webkit. -Argiris -------------- next part -------------- A non-text attachment was scrubbed... Name: prepro.z...

...es=1] %6 = sdiv i32 %5, %atmp4 ; <i32> [#uses=1] It looks like you got these by manually editing the file. Do you think that the shift wasn't supposed to be there in the first place? Can you send me a .ii file that produces the __ZN7WebCore6kolos1ERiS0_PKNS_20RenderBoxModelObjectEPNS_10StyleImageE function with steps to get the bad IR? -Chris > > $ llc opt-pass.ll -o - > > .section __TEXT,__text,regular,pure_instructions > .globl __ZN7WebCore6kolos1ERiS0_PKNS_20RenderBoxModelObjectEPNS_10StyleImageE > .align 4, 0x90 > __ZN7WebCore6kolos1ERiS0_PK...

The attached .ll files seem equivalent, but the resulting asm from 'opt-fail.ll' causes a crash to webkit. I suspect the usage of registers is wrong, can someone take a look ? $ llc opt-pass.ll -o - .section __TEXT,__text,regular,pure_instructions .globl __ZN7WebCore6kolos1ERiS0_PKNS_20RenderBoxModelObjectEPNS_10StyleImageE .align 4, 0x90 __ZN7WebCore6kolos1ERiS0_PKNS_20RenderBoxModelObjectEPNS_10StyleImageE: ## @_ZN7WebCore6kolos1ERiS0_PKNS_20RenderBoxModelObjectEPNS_10StyleImageE ## BB#0: pushq %r14 pushq %rbx subq $8, %rsp movq %rsi, %rbx movq %rdi, %r14 movq %rdx, %rdi movq %rcx, %rsi ca...

...1 WebCore::RenderInline::paint(WebCore::RenderObject::PaintInfo&, int, int) + 45 (in WebCore) [0x976749bd] 1 WebCore::RenderLineBoxList::paint(WebCore::RenderBoxModelObject*, WebCore::RenderObject::PaintInfo&, int, int) const + 1296 (in WebCore) [0x975892f0] 1 WebCore::InlineFlowBox::paint(WebCore::RenderObject::PaintInfo&, int, int) + 463 (in WebCore) [0x975d6baf]...