; RUN: llc %s -o - -O0 -regalloc=fast | FileCheck %s target datalayout = "e-m:o-p:32:32-f64:32:64-f80:128-n8:16:32-S128" target triple = "i386-apple-macosx10.10" @c = external global i8, align 1 @p = thread_local global ptr null, align 4 ; Check that regalloc fast correctly preserves EAX that is set by the TLS call ; until the actual use. ; PR26485. ; ; CHECK-LABEL: f: ; Get c. ; C is spilled because of the scheduling of the instructions, ; but a smarter regalloc wouldn't have spilled it. ; CHECK: movl L_c{{[^,]*}}, [[C_ADDR:%[a-z]+]] ; CHECK-NEXT: movl [[C_ADDR]], [[C_SPILLED:[0-8]+\(%esp\)]] ; Get p. ; CHECK-NEXT: movl _p@{{[0-9a-zA-Z]+}}, [[P_ADDR:%[a-z]+]] ; CHECK-NEXT: calll *([[P_ADDR]]) ; At this point eax contiains the address of p. ; Load c address. ; Make sure we do not clobber eax. ; CHECK-NEXT: movl [[C_SPILLED]], [[C_ADDR_RELOADED:%e[b-z]x+]] ; Store c address into p. ; CHECK-NEXT: movl [[C_ADDR_RELOADED]], (%eax) define void @f() #0 { entry: store ptr @c, ptr @p, align 4 ret void }