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I'm having trouble debugging x86 code generated by LLVM. GDB does work with the code, but not correctly, for example, the "next" command does not skip over a function call. Here's an example. Source program gdb1.c: int x; void foo(){ x++; } void bar(){ x--; } int main(){ foo(); bar(); return 0; } commands: $ llvm-gcc -g -emit-llvm -c gdb1.c -o gdb1.bc $ llc

Argiris Kirtzidis wrote: > > ... > > Try > llc -disable-fp-elim gdb1.bc > > Thanks, I would never have guessed that :-). Are there any other optimizations that are harmful to debug info that I should know about? Thanks -- Ken -- View this message in context: http://www.nabble.com/problems-with-dwarf-gdb-tp23033690p23049871.html Sent from the LLVM - Dev mailing list

There's a problem with LLVM version 2.5 compiled under G++ 4.1.2 which involves computing the cost of inlining a function. It works fine in a debug build. However, the Release build seems to tickle a g++ bug. Here is the code, from InlineCost.h: class InlineCost { enum Kind { Value, Always, Never }; int Cost : 30; unsigned Type : 2; InlineCost(int

I see. Here's another interesting issue: (gdb) b gdb1.c:4 No line 4 in file "gdb1.c". (gdb) step foo () at /home/mcmillan/projects/impact2/test//gdb1.c:4 4 x++; (gdb) You can see that I can step to line 4, but I can't set a breakpoint there. (I used -disable-fp-elim in the compilation). Have you seen this before? Thanks -- Ken Dale Johannesen wrote: > > > On

Well... $ ~/software/llvm-gcc4.2-2.5-x86-linux-RHEL4/bin/llvm-gcc -g gdb1.c -o gdb1 /tmp/ccbAj8x9.s: Assembler messages: /tmp/ccbAj8x9.s:35: Error: suffix or operands invalid for `push' /tmp/ccbAj8x9.s:44: Error: suffix or operands invalid for `pop' /tmp/ccbAj8x9.s:56: Error: suffix or operands invalid for `push' /tmp/ccbAj8x9.s:65: Error: suffix or operands invalid for `pop'