search for: earlycl

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2018 Dec 05
2
Strange regalloc behaviour: one more available register causes much worse allocation
...ce. The problem ----------- Attached are (zipped, as llvm-dev has a 100kb message limit): * bzip2_regression.ll (reduced from bzip2 in spec2006 after being compiled with some patches that I'm working on) which demonstrates the problem. * 0001-AArch64-JumpTableDest-scratch-register-isn-t-earlycl.patch which causes the problem. * without_patch_regalloc.txt, the regalloc debug log for llc -mcpu=cortex-a57 bzip2_regression.ll without the patch applied. * with_patch_regalloc.txt, the same log but with the patch applied. Note that the patch is not correct, but it happens to be a useful...
2018 Dec 05
3
Strange regalloc behaviour: one more available register causes much worse allocation
...ce. The problem ----------- Attached are (zipped, as llvm-dev has a 100kb message limit): * bzip2_regression.ll (reduced from bzip2 in spec2006 after being compiled with some patches that I'm working on) which demonstrates the problem. * 0001-AArch64-JumpTableDest-scratch-register-isn-t-earlycl.patch which causes the problem. * without_patch_regalloc.txt, the regalloc debug log for llc -mcpu=cortex-a57 bzip2_regression.ll without the patch applied. * with_patch_regalloc.txt, the same log but with the patch applied. Note that the patch is not correct, but it happens to be a useful...