https://llvm.org/bugs/show_bug.cgi?id=24789
Bug ID: 24789
Summary: Incorrect codegen for non-standard integer types
Product: libraries
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: Backend: X86
Assignee: unassignedb...@nondot.org
Reporter: san...@playingwithpointers.com
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
Running
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
define i1 @f(i32* %ptr) {
entry:
%ptr.i10 = bitcast i32* %ptr to i10*
%val.i10 = load i10, i10* %ptr.i10
%cmp = icmp eq i10 %val.i10, 77
ret i1 %cmp
}
through llc -O3 gives
.text
.file "<stdin>"
.globl f
.align 16, 0x90
.type f,@function
f: # @f
.cfi_startproc
# BB#0: # %entry
movzwl (%rdi), %eax
cmpl $77, %eax
sete %al
retq
.Lfunc_end0:
.size f, .Lfunc_end0-f
.cfi_endproc
.section ".note.GNU-stack","",@progbits
I think the right behavior here is to mask out the lower 10 bits from %eax
before comparing it with $77.
--
You are receiving this mail because:
You are on the CC list for the bug.
_______________________________________________
llvm-bugs mailing list
llvm-bugs@lists.llvm.org
http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
