[Bug target/85667] (x86_64) ms_abi rules aren't followed when returning short structs with float values

[lokeshjanghel91 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85667

--- Comment #5 from Lokesh Janghel  ---
>>I think we should check if type is aggregate before we return in eax and 
leave xmm0 for float and double.
>>break;
>>+ case 8:
>>+ case 4:
>>+   if (valtype != NULL_TREE && AGGREGATE_TYPE_P (valtype))
>>+ break;
>>+   if (mode == SFmode || mode == DFmode)
>>+ regno = FIRST_SSE_REG;
>>+   break;

It is working in both targets (x86_64 & mingw-w64). I tested in both targets.

[Bug target/84762] GCC for PowerPC32 violates the SysV ABI spec for small struct returns

[lokeshjanghel91 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84762

Lokesh Janghel  changed:

   What|Removed |Added

 CC||lokeshjanghel91 at gmail dot 
com

--- Comment #15 from Lokesh Janghel  ---
Created attachment 45639
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=45639=edit
Patch with new option for LSB & MSB

[Bug middle-end/89889] worse code compared to clang with alloca()

[lokeshjanghel91 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89889

--- Comment #3 from Lokesh Janghel  ---
Is there any target hooks for alloca? Should we do the same like
__builtin_alloca_with_align (array allocation) or we assume the problem as a
target based (prologue/epilogue optimization) issue?

[Bug c++/93589] New: Template instantiation creates a conversion warning when it should not

[lokeshjanghel91 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93589

Bug ID: 93589
   Summary: Template instantiation creates a conversion warning
when it should not
   Product: gcc
   Version: 9.2.0
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: c++
  Assignee: unassigned at gcc dot gnu.org
  Reporter: lokeshjanghel91 at gmail dot com
  Target Milestone: ---

Created attachment 47780
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47780=edit
Run the attached file with -Wconversion

When compiling the attached file, a conversion warning is given if the compiler
is GCC.  This does not happen with CLANG.

$ g++ -Wconversion example.cpp
example.cpp: In instantiation of ‘void print_byte_order(T) [with T = short
int]’:
example.cpp:12:27:   required from here
example.cpp:7:5: warning: conversion to ‘short int’ from ‘int’ may alter its
value [-Wconversion]
 val |=( 5 * static_cast(i));
 ^

[Bug c++/93589] Template instantiation creates a conversion warning when it should not

[lokeshjanghel91 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93589

--- Comment #2 from Lokesh Janghel  ---

>Note your example code does not match the warning message you have in comment 
>#0.

Sorry, I used some reduce test case. here is the correct one:
$ g++ -Wconversion test.cpp
test.cpp: In instantiation of ‘void print_byte_order(T) [with T = short int]’:
test.cpp:12:28:   required from here
test.cpp:7:8: warning: conversion to ‘short int’ from ‘int’ may alter its value
[-Wconversion]
val |= (CHAR_BIT * static_cast(i)) << (CHAR_BIT * static_cast(i));
^

>Does clang warn even in a non-template case?

I reduce the test case for non-template:
#define CHAR_BIT 8
void print_byte_order( short )
{
   short val = 0;
   unsigned i = 1;
   val |= (CHAR_BIT * static_cast(i)) << (CHAR_BIT *
static_cast(i));
}

That gives warning in GCC but Clang not.