464 lines
15 KiB
LLVM
464 lines
15 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; Run with --no_x86_scrub_rip because we care a lot about how globals are
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; accessed in the code model.
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; RUN: llc -verify-machineinstrs < %s -relocation-model=static -code-model=small | FileCheck %s --check-prefix=CHECK --check-prefix=SMALL-STATIC
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; RUN: llc -verify-machineinstrs < %s -relocation-model=static -code-model=medium | FileCheck %s --check-prefix=CHECK --check-prefix=MEDIUM-STATIC
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; RUN: llc -verify-machineinstrs < %s -relocation-model=static -code-model=large | FileCheck %s --check-prefix=CHECK --check-prefix=LARGE-STATIC
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; RUN: llc -verify-machineinstrs < %s -relocation-model=pic -code-model=small | FileCheck %s --check-prefix=CHECK --check-prefix=SMALL-PIC
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; RUN: llc -verify-machineinstrs < %s -relocation-model=pic -code-model=medium | FileCheck %s --check-prefix=CHECK --check-prefix=MEDIUM-PIC
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; RUN: llc -verify-machineinstrs < %s -relocation-model=pic -code-model=large | FileCheck %s --check-prefix=CHECK --check-prefix=LARGE-PIC
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; Generated from this C source:
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;
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; static int static_data[10];
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; int global_data[10] = {1, 2};
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; extern int extern_data[10];
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;
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; int *lea_static_data() { return &static_data[0]; }
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; int *lea_global_data() { return &global_data[0]; }
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; int *lea_extern_data() { return &extern_data[0]; }
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;
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; static void static_fn(void) {}
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; void global_fn(void) {}
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; void extern_fn(void);
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;
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; typedef void (*void_fn)(void);
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; void_fn lea_static_fn() { return &static_fn; }
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; void_fn lea_global_fn() { return &global_fn; }
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; void_fn lea_extern_fn() { return &extern_fn; }
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; ModuleID = 'model.c'
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source_filename = "model.c"
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64--linux"
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@global_data = dso_local global [10 x i32] [i32 1, i32 2, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0], align 16
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@static_data = internal global [10 x i32] zeroinitializer, align 16
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@extern_data = external global [10 x i32], align 16
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@thread_data = external thread_local global i32, align 4
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define dso_local ptr @lea_static_data() #0 {
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; SMALL-STATIC-LABEL: lea_static_data:
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; SMALL-STATIC: # %bb.0:
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; SMALL-STATIC-NEXT: movl $static_data, %eax
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; SMALL-STATIC-NEXT: retq
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;
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; MEDIUM-STATIC-LABEL: lea_static_data:
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; MEDIUM-STATIC: # %bb.0:
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; MEDIUM-STATIC-NEXT: movabsq $static_data, %rax
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; MEDIUM-STATIC-NEXT: retq
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;
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; LARGE-STATIC-LABEL: lea_static_data:
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; LARGE-STATIC: # %bb.0:
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; LARGE-STATIC-NEXT: movabsq $static_data, %rax
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; LARGE-STATIC-NEXT: retq
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;
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; SMALL-PIC-LABEL: lea_static_data:
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; SMALL-PIC: # %bb.0:
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; SMALL-PIC-NEXT: leaq static_data(%rip), %rax
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; SMALL-PIC-NEXT: retq
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;
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; MEDIUM-PIC-LABEL: lea_static_data:
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; MEDIUM-PIC: # %bb.0:
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; MEDIUM-PIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rcx
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; MEDIUM-PIC-NEXT: movabsq $static_data@GOTOFF, %rax
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; MEDIUM-PIC-NEXT: addq %rcx, %rax
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; MEDIUM-PIC-NEXT: retq
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;
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; LARGE-PIC-LABEL: lea_static_data:
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; LARGE-PIC: # %bb.0:
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; LARGE-PIC-NEXT: .L0$pb:
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; LARGE-PIC-NEXT: leaq .L0$pb(%rip), %rax
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; LARGE-PIC-NEXT: movabsq $_GLOBAL_OFFSET_TABLE_-.L0$pb, %rcx
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; LARGE-PIC-NEXT: addq %rax, %rcx
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; LARGE-PIC-NEXT: movabsq $static_data@GOTOFF, %rax
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; LARGE-PIC-NEXT: addq %rcx, %rax
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; LARGE-PIC-NEXT: retq
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ret ptr @static_data
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}
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define dso_local ptr @lea_global_data() #0 {
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; SMALL-STATIC-LABEL: lea_global_data:
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; SMALL-STATIC: # %bb.0:
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; SMALL-STATIC-NEXT: movl $global_data, %eax
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; SMALL-STATIC-NEXT: retq
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;
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; MEDIUM-STATIC-LABEL: lea_global_data:
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; MEDIUM-STATIC: # %bb.0:
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; MEDIUM-STATIC-NEXT: movabsq $global_data, %rax
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; MEDIUM-STATIC-NEXT: retq
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;
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; LARGE-STATIC-LABEL: lea_global_data:
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; LARGE-STATIC: # %bb.0:
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; LARGE-STATIC-NEXT: movabsq $global_data, %rax
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; LARGE-STATIC-NEXT: retq
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;
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; SMALL-PIC-LABEL: lea_global_data:
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; SMALL-PIC: # %bb.0:
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; SMALL-PIC-NEXT: leaq global_data(%rip), %rax
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; SMALL-PIC-NEXT: retq
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;
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; MEDIUM-PIC-LABEL: lea_global_data:
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; MEDIUM-PIC: # %bb.0:
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; MEDIUM-PIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rcx
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; MEDIUM-PIC-NEXT: movabsq $global_data@GOTOFF, %rax
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; MEDIUM-PIC-NEXT: addq %rcx, %rax
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; MEDIUM-PIC-NEXT: retq
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;
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; LARGE-PIC-LABEL: lea_global_data:
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; LARGE-PIC: # %bb.0:
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; LARGE-PIC-NEXT: .L1$pb:
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; LARGE-PIC-NEXT: leaq .L1$pb(%rip), %rax
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; LARGE-PIC-NEXT: movabsq $_GLOBAL_OFFSET_TABLE_-.L1$pb, %rcx
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; LARGE-PIC-NEXT: addq %rax, %rcx
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; LARGE-PIC-NEXT: movabsq $global_data@GOTOFF, %rax
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; LARGE-PIC-NEXT: addq %rcx, %rax
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; LARGE-PIC-NEXT: retq
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ret ptr @global_data
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}
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define dso_local ptr @lea_extern_data() #0 {
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; SMALL-STATIC-LABEL: lea_extern_data:
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; SMALL-STATIC: # %bb.0:
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; SMALL-STATIC-NEXT: movq extern_data@GOTPCREL(%rip), %rax
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; SMALL-STATIC-NEXT: retq
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;
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; MEDIUM-STATIC-LABEL: lea_extern_data:
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; MEDIUM-STATIC: # %bb.0:
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; MEDIUM-STATIC-NEXT: movq extern_data@GOTPCREL(%rip), %rax
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; MEDIUM-STATIC-NEXT: retq
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;
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; LARGE-STATIC-LABEL: lea_extern_data:
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; LARGE-STATIC: # %bb.0:
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; LARGE-STATIC-NEXT: movabsq $extern_data, %rax
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; LARGE-STATIC-NEXT: retq
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;
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; SMALL-PIC-LABEL: lea_extern_data:
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; SMALL-PIC: # %bb.0:
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; SMALL-PIC-NEXT: movq extern_data@GOTPCREL(%rip), %rax
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; SMALL-PIC-NEXT: retq
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;
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; MEDIUM-PIC-LABEL: lea_extern_data:
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; MEDIUM-PIC: # %bb.0:
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; MEDIUM-PIC-NEXT: movq extern_data@GOTPCREL(%rip), %rax
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; MEDIUM-PIC-NEXT: retq
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;
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; LARGE-PIC-LABEL: lea_extern_data:
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; LARGE-PIC: # %bb.0:
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; LARGE-PIC-NEXT: .L2$pb:
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; LARGE-PIC-NEXT: leaq .L2$pb(%rip), %rax
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; LARGE-PIC-NEXT: movabsq $_GLOBAL_OFFSET_TABLE_-.L2$pb, %rcx
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; LARGE-PIC-NEXT: addq %rax, %rcx
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; LARGE-PIC-NEXT: movabsq $extern_data@GOT, %rax
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; LARGE-PIC-NEXT: movq (%rcx,%rax), %rax
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; LARGE-PIC-NEXT: retq
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ret ptr @extern_data
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}
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define dso_local i32 @load_global_data() #0 {
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; SMALL-STATIC-LABEL: load_global_data:
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; SMALL-STATIC: # %bb.0:
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; SMALL-STATIC-NEXT: movl global_data+8(%rip), %eax
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; SMALL-STATIC-NEXT: retq
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;
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; MEDIUM-STATIC-LABEL: load_global_data:
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; MEDIUM-STATIC: # %bb.0:
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; MEDIUM-STATIC-NEXT: movabsq $global_data, %rax
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; MEDIUM-STATIC-NEXT: movl 8(%rax), %eax
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; MEDIUM-STATIC-NEXT: retq
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;
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; LARGE-STATIC-LABEL: load_global_data:
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; LARGE-STATIC: # %bb.0:
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; LARGE-STATIC-NEXT: movabsq $global_data, %rax
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; LARGE-STATIC-NEXT: movl 8(%rax), %eax
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; LARGE-STATIC-NEXT: retq
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;
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; SMALL-PIC-LABEL: load_global_data:
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; SMALL-PIC: # %bb.0:
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; SMALL-PIC-NEXT: movl global_data+8(%rip), %eax
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; SMALL-PIC-NEXT: retq
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;
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; MEDIUM-PIC-LABEL: load_global_data:
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; MEDIUM-PIC: # %bb.0:
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; MEDIUM-PIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rax
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; MEDIUM-PIC-NEXT: movabsq $global_data@GOTOFF, %rcx
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; MEDIUM-PIC-NEXT: movl 8(%rax,%rcx), %eax
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; MEDIUM-PIC-NEXT: retq
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;
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; LARGE-PIC-LABEL: load_global_data:
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; LARGE-PIC: # %bb.0:
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; LARGE-PIC-NEXT: .L3$pb:
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; LARGE-PIC-NEXT: leaq .L3$pb(%rip), %rax
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; LARGE-PIC-NEXT: movabsq $_GLOBAL_OFFSET_TABLE_-.L3$pb, %rcx
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; LARGE-PIC-NEXT: addq %rax, %rcx
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; LARGE-PIC-NEXT: movabsq $global_data@GOTOFF, %rax
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; LARGE-PIC-NEXT: movl 8(%rcx,%rax), %eax
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; LARGE-PIC-NEXT: retq
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%rv = load i32, ptr getelementptr inbounds ([10 x i32], ptr @global_data, i64 0, i64 2)
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ret i32 %rv
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}
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define dso_local i32 @load_extern_data() #0 {
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; SMALL-STATIC-LABEL: load_extern_data:
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; SMALL-STATIC: # %bb.0:
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; SMALL-STATIC-NEXT: movq extern_data@GOTPCREL(%rip), %rax
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; SMALL-STATIC-NEXT: movl 8(%rax), %eax
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; SMALL-STATIC-NEXT: retq
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;
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; MEDIUM-STATIC-LABEL: load_extern_data:
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; MEDIUM-STATIC: # %bb.0:
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; MEDIUM-STATIC-NEXT: movq extern_data@GOTPCREL(%rip), %rax
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; MEDIUM-STATIC-NEXT: movl 8(%rax), %eax
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; MEDIUM-STATIC-NEXT: retq
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;
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; LARGE-STATIC-LABEL: load_extern_data:
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; LARGE-STATIC: # %bb.0:
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; LARGE-STATIC-NEXT: movabsq $extern_data, %rax
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; LARGE-STATIC-NEXT: movl 8(%rax), %eax
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; LARGE-STATIC-NEXT: retq
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;
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; SMALL-PIC-LABEL: load_extern_data:
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; SMALL-PIC: # %bb.0:
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; SMALL-PIC-NEXT: movq extern_data@GOTPCREL(%rip), %rax
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; SMALL-PIC-NEXT: movl 8(%rax), %eax
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; SMALL-PIC-NEXT: retq
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;
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; MEDIUM-PIC-LABEL: load_extern_data:
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; MEDIUM-PIC: # %bb.0:
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; MEDIUM-PIC-NEXT: movq extern_data@GOTPCREL(%rip), %rax
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; MEDIUM-PIC-NEXT: movl 8(%rax), %eax
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; MEDIUM-PIC-NEXT: retq
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;
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; LARGE-PIC-LABEL: load_extern_data:
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; LARGE-PIC: # %bb.0:
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; LARGE-PIC-NEXT: .L4$pb:
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; LARGE-PIC-NEXT: leaq .L4$pb(%rip), %rax
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; LARGE-PIC-NEXT: movabsq $_GLOBAL_OFFSET_TABLE_-.L4$pb, %rcx
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; LARGE-PIC-NEXT: addq %rax, %rcx
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; LARGE-PIC-NEXT: movabsq $extern_data@GOT, %rax
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; LARGE-PIC-NEXT: movq (%rcx,%rax), %rax
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; LARGE-PIC-NEXT: movl 8(%rax), %eax
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; LARGE-PIC-NEXT: retq
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%rv = load i32, ptr getelementptr inbounds ([10 x i32], ptr @extern_data, i64 0, i64 2)
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ret i32 %rv
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}
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define dso_local void @global_fn() #0 {
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; CHECK-LABEL: global_fn:
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; CHECK: # %bb.0:
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; CHECK-NEXT: retq
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ret void
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}
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define internal void @static_fn() #0 {
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; CHECK-LABEL: static_fn:
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; CHECK: # %bb.0:
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; CHECK-NEXT: retq
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ret void
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}
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declare void @extern_fn()
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define dso_local ptr @lea_static_fn() #0 {
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; SMALL-STATIC-LABEL: lea_static_fn:
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; SMALL-STATIC: # %bb.0:
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; SMALL-STATIC-NEXT: movl $static_fn, %eax
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; SMALL-STATIC-NEXT: retq
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;
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; MEDIUM-STATIC-LABEL: lea_static_fn:
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; MEDIUM-STATIC: # %bb.0:
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; MEDIUM-STATIC-NEXT: movabsq $static_fn, %rax
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; MEDIUM-STATIC-NEXT: retq
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;
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; LARGE-STATIC-LABEL: lea_static_fn:
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; LARGE-STATIC: # %bb.0:
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; LARGE-STATIC-NEXT: movabsq $static_fn, %rax
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; LARGE-STATIC-NEXT: retq
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;
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; SMALL-PIC-LABEL: lea_static_fn:
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; SMALL-PIC: # %bb.0:
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; SMALL-PIC-NEXT: leaq static_fn(%rip), %rax
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; SMALL-PIC-NEXT: retq
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;
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; MEDIUM-PIC-LABEL: lea_static_fn:
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; MEDIUM-PIC: # %bb.0:
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; MEDIUM-PIC-NEXT: movabsq $static_fn, %rax
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; MEDIUM-PIC-NEXT: retq
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;
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; LARGE-PIC-LABEL: lea_static_fn:
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; LARGE-PIC: # %bb.0:
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; LARGE-PIC-NEXT: .L7$pb:
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; LARGE-PIC-NEXT: leaq .L7$pb(%rip), %rax
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; LARGE-PIC-NEXT: movabsq $_GLOBAL_OFFSET_TABLE_-.L7$pb, %rcx
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; LARGE-PIC-NEXT: addq %rax, %rcx
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; LARGE-PIC-NEXT: movabsq $static_fn@GOTOFF, %rax
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; LARGE-PIC-NEXT: addq %rcx, %rax
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; LARGE-PIC-NEXT: retq
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ret ptr @static_fn
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}
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define dso_local ptr @lea_global_fn() #0 {
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; SMALL-STATIC-LABEL: lea_global_fn:
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; SMALL-STATIC: # %bb.0:
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; SMALL-STATIC-NEXT: movl $global_fn, %eax
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; SMALL-STATIC-NEXT: retq
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;
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; MEDIUM-STATIC-LABEL: lea_global_fn:
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; MEDIUM-STATIC: # %bb.0:
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; MEDIUM-STATIC-NEXT: movabsq $global_fn, %rax
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; MEDIUM-STATIC-NEXT: retq
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;
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; LARGE-STATIC-LABEL: lea_global_fn:
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; LARGE-STATIC: # %bb.0:
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; LARGE-STATIC-NEXT: movabsq $global_fn, %rax
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; LARGE-STATIC-NEXT: retq
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;
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; SMALL-PIC-LABEL: lea_global_fn:
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; SMALL-PIC: # %bb.0:
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; SMALL-PIC-NEXT: leaq global_fn(%rip), %rax
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; SMALL-PIC-NEXT: retq
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;
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; MEDIUM-PIC-LABEL: lea_global_fn:
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; MEDIUM-PIC: # %bb.0:
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; MEDIUM-PIC-NEXT: movabsq $global_fn, %rax
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; MEDIUM-PIC-NEXT: retq
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;
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; LARGE-PIC-LABEL: lea_global_fn:
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; LARGE-PIC: # %bb.0:
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; LARGE-PIC-NEXT: .L8$pb:
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; LARGE-PIC-NEXT: leaq .L8$pb(%rip), %rax
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; LARGE-PIC-NEXT: movabsq $_GLOBAL_OFFSET_TABLE_-.L8$pb, %rcx
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; LARGE-PIC-NEXT: addq %rax, %rcx
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; LARGE-PIC-NEXT: movabsq $global_fn@GOTOFF, %rax
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; LARGE-PIC-NEXT: addq %rcx, %rax
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; LARGE-PIC-NEXT: retq
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ret ptr @global_fn
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}
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define dso_local ptr @lea_extern_fn() #0 {
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; SMALL-STATIC-LABEL: lea_extern_fn:
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; SMALL-STATIC: # %bb.0:
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; SMALL-STATIC-NEXT: movq extern_fn@GOTPCREL(%rip), %rax
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; SMALL-STATIC-NEXT: retq
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;
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; MEDIUM-STATIC-LABEL: lea_extern_fn:
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; MEDIUM-STATIC: # %bb.0:
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; MEDIUM-STATIC-NEXT: movq extern_fn@GOTPCREL(%rip), %rax
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; MEDIUM-STATIC-NEXT: retq
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;
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; LARGE-STATIC-LABEL: lea_extern_fn:
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; LARGE-STATIC: # %bb.0:
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; LARGE-STATIC-NEXT: movabsq $extern_fn, %rax
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; LARGE-STATIC-NEXT: retq
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;
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; SMALL-PIC-LABEL: lea_extern_fn:
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; SMALL-PIC: # %bb.0:
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; SMALL-PIC-NEXT: movq extern_fn@GOTPCREL(%rip), %rax
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; SMALL-PIC-NEXT: retq
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;
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; MEDIUM-PIC-LABEL: lea_extern_fn:
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; MEDIUM-PIC: # %bb.0:
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; MEDIUM-PIC-NEXT: movq extern_fn@GOTPCREL(%rip), %rax
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; MEDIUM-PIC-NEXT: retq
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;
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; LARGE-PIC-LABEL: lea_extern_fn:
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; LARGE-PIC: # %bb.0:
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; LARGE-PIC-NEXT: .L9$pb:
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; LARGE-PIC-NEXT: leaq .L9$pb(%rip), %rax
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; LARGE-PIC-NEXT: movabsq $_GLOBAL_OFFSET_TABLE_-.L9$pb, %rcx
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; LARGE-PIC-NEXT: addq %rax, %rcx
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; LARGE-PIC-NEXT: movabsq $extern_fn@GOT, %rax
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; LARGE-PIC-NEXT: movq (%rcx,%rax), %rax
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; LARGE-PIC-NEXT: retq
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ret ptr @extern_fn
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}
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; FIXME: The result is same for small, medium and large model, because we
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; specify pie option in the test case. And the type of tls is initial exec tls.
|
|
; For pic code. The large model code for pic tls should be emitted as below.
|
|
|
|
; .L3:
|
|
; leaq .L3(%rip), %rbx
|
|
; movabsq $_GLOBAL_OFFSET_TABLE_-.L3, %r11
|
|
; addq %r11, %rbx
|
|
; leaq thread_data@TLSGD(%rip), %rdi
|
|
; movabsq $__tls_get_addr@PLTOFF, %rax
|
|
; addq %rbx, %rax
|
|
; call *%rax
|
|
; movl (%rax), %eax
|
|
|
|
; The medium and small model code for pic tls should be emitted as below.
|
|
; data16
|
|
; leaq thread_data@TLSGD(%rip), %rdi
|
|
; data16
|
|
; data16
|
|
; rex64
|
|
; callq __tls_get_addr@PLT
|
|
; movl (%rax), %eax
|
|
|
|
define dso_local i32 @load_thread_data() #0 {
|
|
; CHECK-LABEL: load_thread_data:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: movq thread_data@GOTTPOFF(%rip), %rax
|
|
; CHECK-NEXT: movl %fs:(%rax), %eax
|
|
; CHECK-NEXT: retq
|
|
%1 = load i32, ptr @thread_data, align 4
|
|
ret i32 %1
|
|
}
|
|
|
|
define dso_local float @load_constant_pool(float %x) #0 {
|
|
; SMALL-STATIC-LABEL: load_constant_pool:
|
|
; SMALL-STATIC: # %bb.0:
|
|
; SMALL-STATIC-NEXT: addss {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
|
|
; SMALL-STATIC-NEXT: retq
|
|
;
|
|
; MEDIUM-STATIC-LABEL: load_constant_pool:
|
|
; MEDIUM-STATIC: # %bb.0:
|
|
; MEDIUM-STATIC-NEXT: movabsq ${{\.?LCPI[0-9]+_[0-9]+}}, %rax
|
|
; MEDIUM-STATIC-NEXT: addss (%rax), %xmm0
|
|
; MEDIUM-STATIC-NEXT: retq
|
|
;
|
|
; LARGE-STATIC-LABEL: load_constant_pool:
|
|
; LARGE-STATIC: # %bb.0:
|
|
; LARGE-STATIC-NEXT: movabsq ${{\.?LCPI[0-9]+_[0-9]+}}, %rax
|
|
; LARGE-STATIC-NEXT: addss (%rax), %xmm0
|
|
; LARGE-STATIC-NEXT: retq
|
|
;
|
|
; SMALL-PIC-LABEL: load_constant_pool:
|
|
; SMALL-PIC: # %bb.0:
|
|
; SMALL-PIC-NEXT: addss {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
|
|
; SMALL-PIC-NEXT: retq
|
|
;
|
|
; MEDIUM-PIC-LABEL: load_constant_pool:
|
|
; MEDIUM-PIC: # %bb.0:
|
|
; MEDIUM-PIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rax
|
|
; MEDIUM-PIC-NEXT: movabsq ${{\.?LCPI[0-9]+_[0-9]+}}@GOTOFF, %rcx
|
|
; MEDIUM-PIC-NEXT: addss (%rax,%rcx), %xmm0
|
|
; MEDIUM-PIC-NEXT: retq
|
|
;
|
|
; LARGE-PIC-LABEL: load_constant_pool:
|
|
; LARGE-PIC: # %bb.0:
|
|
; LARGE-PIC-NEXT: .L11$pb:
|
|
; LARGE-PIC-NEXT: leaq .L11$pb(%rip), %rax
|
|
; LARGE-PIC-NEXT: movabsq $_GLOBAL_OFFSET_TABLE_-.L11$pb, %rcx
|
|
; LARGE-PIC-NEXT: addq %rax, %rcx
|
|
; LARGE-PIC-NEXT: movabsq ${{\.?LCPI[0-9]+_[0-9]+}}@GOTOFF, %rax
|
|
; LARGE-PIC-NEXT: addss (%rcx,%rax), %xmm0
|
|
; LARGE-PIC-NEXT: retq
|
|
%a = fadd float %x, 1.0
|
|
ret float %a
|
|
}
|
|
|
|
attributes #0 = { noinline nounwind uwtable }
|
|
|
|
!llvm.module.flags = !{!0, !1, !2}
|
|
!llvm.ident = !{!3}
|
|
|
|
!0 = !{i32 1, !"wchar_size", i32 4}
|
|
!1 = !{i32 7, !"PIC Level", i32 2}
|
|
!2 = !{i32 7, !"PIE Level", i32 2}
|
|
!3 = !{!"clang version 7.0.0 "}
|