This set of patches moves global variables to tcg_ctx: gen_opc_ptr gen_opparam_ptr gen_opc_buf gen_opparam_buf
Build tested for all targets. Execution tested on Exynos4210 target. After this patchset was aplied, I noticed 0.7% speed-up of code generation. Probably, this is due to better data caching. Here is the test procedure: 1. Boot Linux Kernel 5 times. 2. For each iteration wait while "JIT cycles" is stable for ~10 seconds 3. Write down the "cycles/op" Here are the results (tested on gcc-4.6): Before clean-up: min: 731.5 max: 734.8 avg: 733.0 standard deviation: ~2 ~= 0.2% Average cycles/op = 733 +- 2 After clean-up: min: 725.0 max: 730.5 avg: 727.8 standard deviation: ~3 ~= 0.4% Average cycles/op = 728 +- 3 Speed-up of TCG code generation = 0.7% Changelog: v3->v4: Rebased. Added target-cris/translate.c: Code style clean-up v2->v3: Removed tcg_cur_ctx since it gives slow-down on gcc-4.5. Rebased. v1->v2: Introduced TCGContext *tcg_cur_ctx global to use in those places where we don't have an interface to pass pointer to tcg_ctx. Code style clean-up Evgeny (2): tcg/tcg.h: Duplicate global TCG variables in TCGContext TCG: Remove unused global variables Evgeny Voevodin (5): target-cris/translate.c: Code style clean-up TCG: Use gen_opc_ptr from context instead of global variable. TCG: Use gen_opparam_ptr from context instead of global variable. TCG: Use gen_opc_buf from context instead of global variable. TCG: Use gen_opparam_buf from context instead of global variable. gen-icount.h | 2 +- target-alpha/translate.c | 10 +- target-arm/translate.c | 10 +- target-cris/translate.c | 5041 +++++++++++++++++++++-------------------- target-i386/translate.c | 10 +- target-lm32/translate.c | 13 +- target-m68k/translate.c | 10 +- target-microblaze/translate.c | 13 +- target-mips/translate.c | 11 +- target-openrisc/translate.c | 13 +- target-ppc/translate.c | 11 +- target-s390x/translate.c | 11 +- target-sh4/translate.c | 10 +- target-sparc/translate.c | 10 +- target-unicore32/translate.c | 10 +- target-xtensa/translate.c | 8 +- tcg/optimize.c | 62 +- tcg/tcg-op.h | 324 +-- tcg/tcg.c | 85 +- tcg/tcg.h | 10 +- translate-all.c | 3 - 21 files changed, 2860 insertions(+), 2817 deletions(-) -- 1.7.9.5
