llvm/test/CodeGen/ARM/2011-04-12-FastRegAlloc.ll
Eric Christopher d574bb5a6e Fix a bug where we were counting the alias sets as completely used
registers for fast allocation a different way. This has us updating
used registers only when we're using that exact register.

Fixes rdar://9207598



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129711 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-18 19:26:25 +00:00

16 lines
564 B
LLVM

; RUN: llc < %s -O0 -verify-machineinstrs -regalloc=fast
; Previously we'd crash as out of registers on this input by clobbering all of
; the aliases.
target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:32:64-v128:32:128-a0:0:32-n32"
target triple = "thumbv7-apple-darwin10.0.0"
define void @_Z8TestCasev() nounwind ssp {
entry:
%a = alloca float, align 4
%tmp = load float* %a, align 4
call void asm sideeffect "", "w,~{s0},~{s16}"(float %tmp) nounwind, !srcloc !0
ret void
}
!0 = metadata !{i32 109}