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