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https://github.com/RPCS3/llvm-mirror.git
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13e607925f
Emulated TLS is enabled by llc flag -emulated-tls, which is passed by clang driver. When llc is called explicitly or from other drivers like LTO, missing -emulated-tls flag would generate wrong TLS code for targets that supports only this mode. Now use useEmulatedTLS() instead of Options.EmulatedTLS to decide whether emulated TLS code should be generated. Unit tests are modified to run with and without the -emulated-tls flag. Differential Revision: https://reviews.llvm.org/D42999 llvm-svn: 326341
129 lines
3.2 KiB
LLVM
129 lines
3.2 KiB
LLVM
; RUN: llc < %s -emulated-tls -mcpu=generic -mtriple=x86_64-linux-gnu -relocation-model=pic \
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; RUN: | FileCheck -check-prefix=X64 %s
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; RUN: llc < %s -emulated-tls -mcpu=generic -mtriple=i386-linux-gnu -relocation-model=pic \
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; RUN: | FileCheck -check-prefix=X32 %s
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; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux-gnu -relocation-model=pic \
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; RUN: | FileCheck -check-prefix=X64 %s
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; RUN: llc < %s -mcpu=generic -mtriple=i386-linux-gnu -relocation-model=pic \
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; RUN: | FileCheck -check-prefix=X32 %s
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; External Linkage
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@a = global i32 0, align 4
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define i32 @my_access_global_a() #0 {
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; X32-LABEL: my_access_global_a:
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; X32: addl $_GLOBAL_OFFSET_TABLE_{{.*}}, %eax
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; X32-NEXT: movl a@GOTOFF(%eax), %eax
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; X64-LABEL: my_access_global_a:
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; X64: movl a(%rip), %eax
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entry:
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%0 = load i32, i32* @a, align 4
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ret i32 %0
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}
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; WeakAny Linkage
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@b = weak global i32 0, align 4
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define i32 @my_access_global_b() #0 {
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; X32-LABEL: my_access_global_b:
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; X32: addl $_GLOBAL_OFFSET_TABLE_{{.*}}, %eax
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; X32-NEXT: movl b@GOTOFF(%eax), %eax
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; X64-LABEL: my_access_global_b:
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; X64: movl b(%rip), %eax
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entry:
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%0 = load i32, i32* @b, align 4
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ret i32 %0
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}
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; Internal Linkage
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@c = internal global i32 0, align 4
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define i32 @my_access_global_c() #0 {
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; X32-LABEL: my_access_global_c:
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; X32: addl $_GLOBAL_OFFSET_TABLE_{{.*}}, %eax
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; X32-NEXT: movl c@GOTOFF(%eax), %eax
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; X64-LABEL: my_access_global_c:
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; X64: movl c(%rip), %eax
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entry:
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%0 = load i32, i32* @c, align 4
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ret i32 %0
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}
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; External Linkage, only declaration.
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@d = external global i32, align 4
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define i32 @my_access_global_load_d() #0 {
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; X32-LABEL: my_access_global_load_d:
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; X32: addl $_GLOBAL_OFFSET_TABLE_{{.*}}, %eax
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; X32-NEXT: movl d@GOT(%eax), %eax
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; X32-NEXT: movl (%eax), %eax
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; X64-LABEL: my_access_global_load_d:
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; X64: movq d@GOTPCREL(%rip), %rax
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; X64-NEXT: movl (%rax), %eax
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entry:
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%0 = load i32, i32* @d, align 4
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ret i32 %0
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}
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; External Linkage, only declaration, store a value.
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define i32 @my_access_global_store_d() #0 {
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; X32-LABEL: my_access_global_store_d:
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; X32: addl $_GLOBAL_OFFSET_TABLE_{{.*}}, %eax
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; X32-NEXT: movl d@GOT(%eax), %eax
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; X32-NEXT: movl $2, (%eax)
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; X64-LABEL: my_access_global_store_d:
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; X64: movq d@GOTPCREL(%rip), %rax
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; X64-NEXT: movl $2, (%rax)
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entry:
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store i32 2, i32* @d, align 4
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ret i32 0
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}
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; External Linkage, function pointer access.
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declare i32 @access_fp(i32 ()*)
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declare i32 @foo()
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define i32 @my_access_fp_foo() #0 {
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; X32-LABEL: my_access_fp_foo:
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; X32: addl $_GLOBAL_OFFSET_TABLE_{{.*}}, %ebx
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; X32-NEXT: movl foo@GOT(%ebx), %eax
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; X64-LABEL: my_access_fp_foo:
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; X64: movq foo@GOTPCREL(%rip), %rdi
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entry:
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%call = call i32 @access_fp(i32 ()* @foo)
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ret i32 %call
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}
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; LinkOnceODR Linkage, function pointer access.
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$bar = comdat any
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define linkonce_odr i32 @bar() comdat {
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entry:
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ret i32 0
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}
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define i32 @my_access_fp_bar() #0 {
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; X32-LABEL: my_access_fp_bar:
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; X32: addl $_GLOBAL_OFFSET_TABLE_{{.*}}, %ebx
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; X32-NEXT: leal bar@GOTOFF(%ebx), %eax
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; X64-LABEL: my_access_fp_bar:
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; X64: leaq bar(%rip), %rdi
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entry:
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%call = call i32 @access_fp(i32 ()* @bar)
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ret i32 %call
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}
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!llvm.module.flags = !{!0, !1}
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!0 = !{i32 1, !"PIC Level", i32 1}
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!1 = !{i32 1, !"PIE Level", i32 1}
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