https://llvm.org/bugs/show_bug.cgi?id=28513
Bug ID: 28513
Summary: [x86] go to eleven
Product: libraries
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: Backend: X86
Assignee: unassignedb...@nondot.org
Reporter: spatel+l...@rotateright.com
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
int foo(int x) {
return x * 11;
}
define i32 @foo(i32 %x) {
%mul = mul nsw i32 %x, 11
ret i32 %mul
}
------------------------------------------------------------------------------
GCC 6.1:
leal (%rdi,%rdi,4), %eax
leal (%rdi,%rax,2), %eax
ret
ICC 13:
lea (%rdi,%rdi,8), %edx #2.14
lea (%rdx,%rdi,2), %eax #2.14
ret #2.14
LLVM:
imull $11, %edi, %eax
retq
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