| commit | 2d3458363e4e529d80030a648a806fef0c13cf71 | |
| author | Philip <pipcet@gmail.com> | |
| Sun, 26 Apr 2015 17:31:39 +0000 (26 17:31 +0000) | ||
| committer | Philip <pipcet@gmail.com> | |
| Sun, 26 Apr 2015 17:31:39 +0000 (26 17:31 +0000) | ||
| tree | b17582e15d36aad68f41beb8dd63b9b000309f98 | treesnapshot (tar.gz zip) |
| parent | 8d44851d6582ddb753f9cfc273c872a4164189df | commitdiff |
fix another x86_64 ABI bug
The old code assumed that if an argument doesn't fit into the available
registers, none of the subsequent arguments do, either. But that's
wrong: passing 7 doubles, then a two-double struct, then another double
should generate code that passes the 9th argument in the 8th register
and the two-double struct on the stack. We now do so.
However, this patch does not yet fix the function calling code to do the
right thing in the same case.
The old code assumed that if an argument doesn't fit into the available
registers, none of the subsequent arguments do, either. But that's
wrong: passing 7 doubles, then a two-double struct, then another double
should generate code that passes the 9th argument in the 8th register
and the two-double struct on the stack. We now do so.
However, this patch does not yet fix the function calling code to do the
right thing in the same case.
| tests/abitest.c | diffblobblamehistory | |
| x86_64-gen.c | diffblobblamehistory |