https://llvm.org/bugs/show_bug.cgi?id=26412
Bug ID: 26412
Summary: vzeroupper is generated in interrupt handler
Product: new-bugs
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Classification: Unclassified
[hjl@gnu-6 interrupt-8]$ cat s.i
extern void foo (void *) __attribute__ ((interrupt));
extern void bar (void);
void foo (void *frame)
{
bar ();
}
[hjl@gnu-6 interrupt-8]$ make s.s
/export/build/gnu/llvm-clang-bootstrap/stage1/build-x86_64-linux/bin/clang -O2
-Wall -march=nehalem -mavx -S -o s.s s.i
[hjl@gnu-6 interrupt-8]$ grep vzero s.s
vzeroupper
[hjl@gnu-6 interrupt-8]$
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