http://llvm.org/bugs/show_bug.cgi?id=2435
Summary: likely bad codegen bug
Product: new-bugs
Version: unspecified
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: new bugs
AssignedTo: [EMAIL PROTECTED]
ReportedBy: [EMAIL PROTECTED]
CC: [email protected]
For recent svn targeting ia32.
The generated code does not store to g_139 at all. It should.
[EMAIL PROTECTED] tmp18]$ cat small.c
typedef int int32_t;
typedef unsigned int uint32_t;
int32_t g_139;
void func_56 (int32_t p_60)
{
g_139 = 1;
if (p_60) {
for (1; 1; 1)
g_139 = 1;
}
}
[EMAIL PROTECTED] tmp18]$ llvm-gcc -O small.c -S --emit-llvm -o -
; ModuleID = 'small.c'
target datalayout =
"e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32"
target triple = "i386-pc-linux-gnu"
@g_139 = common global i32 0 ; <i32*> [#uses=0]
define void @func_56(i32 %p_60) nounwind {
entry:
%tmp1 = icmp eq i32 %p_60, 0 ; <i1> [#uses=1]
br i1 %tmp1, label %return, label %bb
bb: ; preds = %entry, %bb
br label %bb
return: ; preds = %entry
ret void
}
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