On Wed, 26 Jan 2011 13:30:04 +0100, Christoph Bumiller <e0425...@student.tuwien.ac.at> wrote: > The current copy propagation code would propagate TEMP[0].x from (6) > into TEMP[1].x from (8) in the following, which is clearly wrong: > > 6: MOV TEMP[1].x, TEMP[0].xxxx > 7: MOV TEMP[0].x, TEMP[0].yyyy > 8: MOV TEMP[0].y, TEMP[1].xxxx > 9: ADD TEMP[1].x, TEMP[0].zzzz, IMM[0].yyyy > 10: MOV TEMP[0].z, TEMP[1].xxxx > > Possible patch and a small program to check this attached. > Tested with llvmpipe.
Thanks for catching this! Could you cut it down to a nice small shader_test for piglit so we can regression test?
pgp8RydCVRsCL.pgp
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