llvm-6502/test/CodeGen/X86/sext-subreg.ll
Bill Wendling c6df9883da Have the X86 back-end emit the alias instead of what's being aliased. In most
cases, it's much nicer and more informative reading the alias.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129497 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-14 01:11:51 +00:00

18 lines
417 B
LLVM

; RUN: llc < %s -march=x86-64 | FileCheck %s
; rdar://7529457
define i64 @t(i64 %A, i64 %B, i32* %P, i64 *%P2) nounwind {
; CHECK: t:
; CHECK: movsx %e{{.*}}, %rax
; CHECK: movq %rax
; CHECK: movl %eax
%C = add i64 %A, %B
%D = trunc i64 %C to i32
volatile store i32 %D, i32* %P
%E = shl i64 %C, 32
%F = ashr i64 %E, 32
volatile store i64 %F, i64 *%P2
volatile store i32 %D, i32* %P
ret i64 undef
}