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#pragma GCC unroll is not emitted immediately before its loop #174
Description
GCC rejects the generated C when #pragma GCC unroll is not emitted immediately before its loop.
Reproducer for the failure:
// Case 1
void h();
void f(char *first, char *last) {
h();
#pragma GCC unroll 4
while (first != last)
++first;
}
// Case 2 (the libstdc++ 15 form)
struct It { char *p; };
bool operator!=(It a, It b);
void f(It first, It last) {
#pragma GCC unroll 4
while (first != last)
++first.p;
}The generated C for case 1 is:
void _Z1fPcS_( char *__2_14_first, char *__2_27_last) {
#pragma GCC unroll 4
_Z1hv();
while (__2_14_first != __2_27_last) {
++__2_14_first; }
}And then the error is:
Test_name.c:25:1: error: for, while or do statement expected before '_Z1hv'
Test_name.c:36:1: error: for, while or do statement expected before 'auto'
This impacts Boost.Graph, Locale, Log, Process, Program_options, and test
Activity
Update change log with fix for edgcpp#174
Update change log with fix for edgcpp#174
Add support for GNU loop pragmas [GH edgcpp#174]
Add support for GNU loop pragmas [GH edgcpp#174]
Add support for GNU loop pragmas [GH edgcpp#174]
Add support for GNU loop pragmas [GH edgcpp#174]
Add support for GNU loop pragmas [GH edgcpp#174]
Add support and proper relocation of GCC loop pragmas [GH edgcpp#174]
Add support and proper relocation of GCC loop pragmas [GH edgcpp#174]