846688f825
constant known at compile time. Do not ever use the stack to materialize (non-function-argument) constants. Currently, constants are only the non-materialized, non-function literals in the AST. It is a known issue that there is no test coverage for the cases of assigning a non-literal to a variable and returning a literal. Those code paths are unreachable and tests will be added when they become reachable. For the code '.result = true', we had previously on ia32: 27 push 0xf5c28161 ;; object: 0xf5c28161 <true> 32 pop [ebp+0xf4] Now: 27 mov eax,0xf5c26161 ;; object: 0xf5c26161 <true> 32 mov [ebp+0xf4],eax ======== We had previously on x64: 25 movq r10,0x7fb8c2f78199 ;; object: 0x7fb8c2f78199 <true> 35 push r10 37 pop [rbp-0x18] Now: 25 movq r10,0x7fb131386199 ;; object: 0x7fb131386199 <true> 35 movq [rbp-0x18],r10 The generated code for ARM did not include the extra memory traffic. It was already eliminated by the ARM assembler's push/pop elimination. Review URL: http://codereview.chromium.org/300003 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3088 ce2b1a6d-e550-0410-aec6-3dcde31c8c00 |
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| include | ||
| samples | ||
| src | ||
| test | ||
| tools | ||
| .gitignore | ||
| AUTHORS | ||
| ChangeLog | ||
| LICENSE | ||
| SConstruct | ||