mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-12-22 19:49:49 +00:00
26 lines
626 B
LLVM
26 lines
626 B
LLVM
; The register allocator can commute two-address instructions to avoid
|
|
; insertion of register-register copies.
|
|
|
|
; Make sure there are only 3 mov's for each testcase
|
|
; RUN: llvm-upgrade < %s | llvm-as | llc -march=x86 -x86-asm-syntax=intel | \
|
|
; RUN: grep {mov } | wc -l | grep 6
|
|
|
|
|
|
target triple = "i686-pc-linux-gnu"
|
|
|
|
%G = external global int
|
|
|
|
declare void %ext(int)
|
|
|
|
int %add_test(int %X, int %Y) {
|
|
%Z = add int %X, %Y ;; Last use of Y, but not of X.
|
|
store int %Z, int* %G
|
|
ret int %X
|
|
}
|
|
|
|
int %xor_test(int %X, int %Y) {
|
|
%Z = xor int %X, %Y ;; Last use of Y, but not of X.
|
|
store int %Z, int* %G
|
|
ret int %X
|
|
}
|