diff options
| author | Xavier Leroy <xavierleroy@users.noreply.github.com> | 2015-03-31 10:19:44 +0200 |
|---|---|---|
| committer | Xavier Leroy <xavierleroy@users.noreply.github.com> | 2015-03-31 10:19:44 +0200 |
| commit | 47a6b116069cff9c71466bde1fd87d0775ec9175 (patch) | |
| tree | cc6402162b64512db1f82ebbb5c94606f14ee3a8 /runtime/ia32/vararg.S | |
| parent | 14f3f0dfb90c74b7e1bc96c4aee74fb88dd7923b (diff) | |
| parent | c1205952ab7e3be09cd1a0a9a4d4ee9ddeefe1ea (diff) | |
| download | compcert-47a6b116069cff9c71466bde1fd87d0775ec9175.tar.gz compcert-47a6b116069cff9c71466bde1fd87d0775ec9175.zip | |
Merge pull request #33 from AbsInt/struct-passing
ABI conformance for passing function arguments and returning function results of struct and union types
Diffstat (limited to 'runtime/ia32/vararg.S')
| -rw-r--r-- | runtime/ia32/vararg.S | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/runtime/ia32/vararg.S b/runtime/ia32/vararg.S index ec55a454..78666c70 100644 --- a/runtime/ia32/vararg.S +++ b/runtime/ia32/vararg.S @@ -67,3 +67,15 @@ FUNCTION(__compcert_va_float64) movl %edx, 0(%ecx) ret ENDFUNCTION(__compcert_va_float64) + +FUNCTION(__compcert_va_composite) + movl 4(%esp), %ecx // %ecx = ap parameter + movl 8(%esp), %edx // %edx = size of composite in bytes + movl 0(%ecx), %eax // %eax = current argument pointer + leal 3(%eax, %edx), %edx // advance by size + andl $0xfffffffc, %edx // and round up to multiple of 4 + movl %edx, 0(%ecx) // update argument pointer + ret +ENDFUNCTION(__compcert_va_composite) + + |