http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54142
--- Comment #8 from Paul H. Hargrove <PHHargrove at lbl dot gov> 2012-08-13
22:04:40 UTC ---
The following is a transcript of a test I just tried one of my systems where
Gary and I have observed this bug. The test appears to show that the gcc
provided by Fedora Core 6 does generate "sldi" instructions and the
system-provided assembler understands them. So, whatever is causing the build
failures that Gary and I see, it is *not* simply a matter of an assembler not
supporting the instructions.
-Paul
{phargrov@fc6 ~}$ cat q.c
unsigned long long foo(void) { return 0x00007FFF00000000LLU; }
{phargrov@fc6 ~}$ gcc -m64 -O -S q.c
{phargrov@fc6 ~}$ cat q.s
.file "q.c"
.section ".toc","aw"
.section ".text"
.align 2
.globl foo
.section ".opd","aw"
.align 3
foo:
.quad .L.foo,.TOC.@tocbase
.previous
.type foo, @function
.L.foo:
lis 3,0x7fff
sldi 3,3,16
blr
.long 0
.byte 0,0,0,0,0,0,0,0
.size foo,.-.L.foo
.ident "GCC: (GNU) 4.1.2 20070626 (Red Hat 4.1.2-13)"
.section .note.GNU-stack,"",@progbits
{phargrov@fc6 ~}$ as -a64 -mppc64 q.s
[no errors]
