; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; Run with --no_x86_scrub_rip because we care a lot about how globals are ; accessed in the code model. ; RUN: llc -verify-machineinstrs < %s -relocation-model=static -code-model=small | FileCheck %s --check-prefix=CHECK --check-prefix=SMALL-STATIC ; RUN: llc -verify-machineinstrs < %s -relocation-model=static -code-model=medium | FileCheck %s --check-prefix=CHECK --check-prefix=MEDIUM-STATIC ; RUN: llc -verify-machineinstrs < %s -relocation-model=static -code-model=large | FileCheck %s --check-prefix=CHECK --check-prefix=LARGE-STATIC ; RUN: llc -verify-machineinstrs < %s -relocation-model=pic -code-model=small | FileCheck %s --check-prefix=CHECK --check-prefix=SMALL-PIC ; RUN: llc -verify-machineinstrs < %s -relocation-model=pic -code-model=medium | FileCheck %s --check-prefix=CHECK --check-prefix=MEDIUM-PIC ; RUN: llc -verify-machineinstrs < %s -relocation-model=pic -code-model=large | FileCheck %s --check-prefix=CHECK --check-prefix=LARGE-PIC ; Generated from this C source: ; ; static int static_data[10]; ; int global_data[10] = {1, 2}; ; extern int extern_data[10]; ; ; int *lea_static_data() { return &static_data[0]; } ; int *lea_global_data() { return &global_data[0]; } ; int *lea_extern_data() { return &extern_data[0]; } ; ; static void static_fn(void) {} ; void global_fn(void) {} ; void extern_fn(void); ; ; typedef void (*void_fn)(void); ; void_fn lea_static_fn() { return &static_fn; } ; void_fn lea_global_fn() { return &global_fn; } ; void_fn lea_extern_fn() { return &extern_fn; } ; ModuleID = 'model.c' source_filename = "model.c" target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" target triple = "x86_64--linux" @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 @static_data = internal global [10 x i32] zeroinitializer, align 16 @extern_data = external global [10 x i32], align 16 @thread_data = external thread_local global i32, align 4 define dso_local i32* @lea_static_data() #0 { ; SMALL-STATIC-LABEL: lea_static_data: ; SMALL-STATIC: # %bb.0: ; SMALL-STATIC-NEXT: movl $static_data, %eax ; SMALL-STATIC-NEXT: retq ; ; MEDIUM-STATIC-LABEL: lea_static_data: ; MEDIUM-STATIC: # %bb.0: ; MEDIUM-STATIC-NEXT: movabsq $static_data, %rax ; MEDIUM-STATIC-NEXT: retq ; ; LARGE-STATIC-LABEL: lea_static_data: ; LARGE-STATIC: # %bb.0: ; LARGE-STATIC-NEXT: movabsq $static_data, %rax ; LARGE-STATIC-NEXT: retq ; ; SMALL-PIC-LABEL: lea_static_data: ; SMALL-PIC: # %bb.0: ; SMALL-PIC-NEXT: leaq static_data(%rip), %rax ; SMALL-PIC-NEXT: retq ; ; MEDIUM-PIC-LABEL: lea_static_data: ; MEDIUM-PIC: # %bb.0: ; MEDIUM-PIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rcx ; MEDIUM-PIC-NEXT: movabsq $static_data@GOTOFF, %rax ; MEDIUM-PIC-NEXT: addq %rcx, %rax ; MEDIUM-PIC-NEXT: retq ; ; LARGE-PIC-LABEL: lea_static_data: ; LARGE-PIC: # %bb.0: ; LARGE-PIC-NEXT: .L0$pb: ; LARGE-PIC-NEXT: leaq .L0$pb(%rip), %rax ; LARGE-PIC-NEXT: movabsq $_GLOBAL_OFFSET_TABLE_-.L0$pb, %rcx ; LARGE-PIC-NEXT: addq %rax, %rcx ; LARGE-PIC-NEXT: movabsq $static_data@GOTOFF, %rax ; LARGE-PIC-NEXT: addq %rcx, %rax ; LARGE-PIC-NEXT: retq ret i32* getelementptr inbounds ([10 x i32], [10 x i32]* @static_data, i64 0, i64 0) } define dso_local i32* @lea_global_data() #0 { ; SMALL-STATIC-LABEL: lea_global_data: ; SMALL-STATIC: # %bb.0: ; SMALL-STATIC-NEXT: movl $global_data, %eax ; SMALL-STATIC-NEXT: retq ; ; MEDIUM-STATIC-LABEL: lea_global_data: ; MEDIUM-STATIC: # %bb.0: ; MEDIUM-STATIC-NEXT: movabsq $global_data, %rax ; MEDIUM-STATIC-NEXT: retq ; ; LARGE-STATIC-LABEL: lea_global_data: ; LARGE-STATIC: # %bb.0: ; LARGE-STATIC-NEXT: movabsq $global_data, %rax ; LARGE-STATIC-NEXT: retq ; ; SMALL-PIC-LABEL: lea_global_data: ; SMALL-PIC: # %bb.0: ; SMALL-PIC-NEXT: leaq global_data(%rip), %rax ; SMALL-PIC-NEXT: retq ; ; MEDIUM-PIC-LABEL: lea_global_data: ; MEDIUM-PIC: # %bb.0: ; MEDIUM-PIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rcx ; MEDIUM-PIC-NEXT: movabsq $global_data@GOTOFF, %rax ; MEDIUM-PIC-NEXT: addq %rcx, %rax ; MEDIUM-PIC-NEXT: retq ; ; LARGE-PIC-LABEL: lea_global_data: ; LARGE-PIC: # %bb.0: ; LARGE-PIC-NEXT: .L1$pb: ; LARGE-PIC-NEXT: leaq .L1$pb(%rip), %rax ; LARGE-PIC-NEXT: movabsq $_GLOBAL_OFFSET_TABLE_-.L1$pb, %rcx ; LARGE-PIC-NEXT: addq %rax, %rcx ; LARGE-PIC-NEXT: movabsq $global_data@GOTOFF, %rax ; LARGE-PIC-NEXT: addq %rcx, %rax ; LARGE-PIC-NEXT: retq ret i32* getelementptr inbounds ([10 x i32], [10 x i32]* @global_data, i64 0, i64 0) } define dso_local i32* @lea_extern_data() #0 { ; SMALL-STATIC-LABEL: lea_extern_data: ; SMALL-STATIC: # %bb.0: ; SMALL-STATIC-NEXT: movl $extern_data, %eax ; SMALL-STATIC-NEXT: retq ; ; MEDIUM-STATIC-LABEL: lea_extern_data: ; MEDIUM-STATIC: # %bb.0: ; MEDIUM-STATIC-NEXT: movabsq $extern_data, %rax ; MEDIUM-STATIC-NEXT: retq ; ; LARGE-STATIC-LABEL: lea_extern_data: ; LARGE-STATIC: # %bb.0: ; LARGE-STATIC-NEXT: movabsq $extern_data, %rax ; LARGE-STATIC-NEXT: retq ; ; SMALL-PIC-LABEL: lea_extern_data: ; SMALL-PIC: # %bb.0: ; SMALL-PIC-NEXT: movq extern_data@GOTPCREL(%rip), %rax ; SMALL-PIC-NEXT: retq ; ; MEDIUM-PIC-LABEL: lea_extern_data: ; MEDIUM-PIC: # %bb.0: ; MEDIUM-PIC-NEXT: movq extern_data@GOTPCREL(%rip), %rax ; MEDIUM-PIC-NEXT: retq ; ; LARGE-PIC-LABEL: lea_extern_data: ; LARGE-PIC: # %bb.0: ; LARGE-PIC-NEXT: .L2$pb: ; LARGE-PIC-NEXT: leaq .L2$pb(%rip), %rax ; LARGE-PIC-NEXT: movabsq $_GLOBAL_OFFSET_TABLE_-.L2$pb, %rcx ; LARGE-PIC-NEXT: addq %rax, %rcx ; LARGE-PIC-NEXT: movabsq $extern_data@GOT, %rax ; LARGE-PIC-NEXT: movq (%rcx,%rax), %rax ; LARGE-PIC-NEXT: retq ret i32* getelementptr inbounds ([10 x i32], [10 x i32]* @extern_data, i64 0, i64 0) } define dso_local i32 @load_global_data() #0 { ; SMALL-STATIC-LABEL: load_global_data: ; SMALL-STATIC: # %bb.0: ; SMALL-STATIC-NEXT: movl global_data+8(%rip), %eax ; SMALL-STATIC-NEXT: retq ; ; MEDIUM-STATIC-LABEL: load_global_data: ; MEDIUM-STATIC: # %bb.0: ; MEDIUM-STATIC-NEXT: movabsq $global_data, %rax ; MEDIUM-STATIC-NEXT: movl 8(%rax), %eax ; MEDIUM-STATIC-NEXT: retq ; ; LARGE-STATIC-LABEL: load_global_data: ; LARGE-STATIC: # %bb.0: ; LARGE-STATIC-NEXT: movabsq $global_data, %rax ; LARGE-STATIC-NEXT: movl 8(%rax), %eax ; LARGE-STATIC-NEXT: retq ; ; SMALL-PIC-LABEL: load_global_data: ; SMALL-PIC: # %bb.0: ; SMALL-PIC-NEXT: movl global_data+8(%rip), %eax ; SMALL-PIC-NEXT: retq ; ; MEDIUM-PIC-LABEL: load_global_data: ; MEDIUM-PIC: # %bb.0: ; MEDIUM-PIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rax ; MEDIUM-PIC-NEXT: movabsq $global_data@GOTOFF, %rcx ; MEDIUM-PIC-NEXT: movl 8(%rax,%rcx), %eax ; MEDIUM-PIC-NEXT: retq ; ; LARGE-PIC-LABEL: load_global_data: ; LARGE-PIC: # %bb.0: ; LARGE-PIC-NEXT: .L3$pb: ; LARGE-PIC-NEXT: leaq .L3$pb(%rip), %rax ; LARGE-PIC-NEXT: movabsq $_GLOBAL_OFFSET_TABLE_-.L3$pb, %rcx ; LARGE-PIC-NEXT: addq %rax, %rcx ; LARGE-PIC-NEXT: movabsq $global_data@GOTOFF, %rax ; LARGE-PIC-NEXT: movl 8(%rcx,%rax), %eax ; LARGE-PIC-NEXT: retq %rv = load i32, i32* getelementptr inbounds ([10 x i32], [10 x i32]* @global_data, i64 0, i64 2) ret i32 %rv } define dso_local i32 @load_extern_data() #0 { ; SMALL-STATIC-LABEL: load_extern_data: ; SMALL-STATIC: # %bb.0: ; SMALL-STATIC-NEXT: movl extern_data+8(%rip), %eax ; SMALL-STATIC-NEXT: retq ; ; MEDIUM-STATIC-LABEL: load_extern_data: ; MEDIUM-STATIC: # %bb.0: ; MEDIUM-STATIC-NEXT: movabsq $extern_data, %rax ; MEDIUM-STATIC-NEXT: movl 8(%rax), %eax ; MEDIUM-STATIC-NEXT: retq ; ; LARGE-STATIC-LABEL: load_extern_data: ; LARGE-STATIC: # %bb.0: ; LARGE-STATIC-NEXT: movabsq $extern_data, %rax ; LARGE-STATIC-NEXT: movl 8(%rax), %eax ; LARGE-STATIC-NEXT: retq ; ; SMALL-PIC-LABEL: load_extern_data: ; SMALL-PIC: # %bb.0: ; SMALL-PIC-NEXT: movq extern_data@GOTPCREL(%rip), %rax ; SMALL-PIC-NEXT: movl 8(%rax), %eax ; SMALL-PIC-NEXT: retq ; ; MEDIUM-PIC-LABEL: load_extern_data: ; MEDIUM-PIC: # %bb.0: ; MEDIUM-PIC-NEXT: movq extern_data@GOTPCREL(%rip), %rax ; MEDIUM-PIC-NEXT: movl 8(%rax), %eax ; MEDIUM-PIC-NEXT: retq ; ; LARGE-PIC-LABEL: load_extern_data: ; LARGE-PIC: # %bb.0: ; LARGE-PIC-NEXT: .L4$pb: ; LARGE-PIC-NEXT: leaq .L4$pb(%rip), %rax ; LARGE-PIC-NEXT: movabsq $_GLOBAL_OFFSET_TABLE_-.L4$pb, %rcx ; LARGE-PIC-NEXT: addq %rax, %rcx ; LARGE-PIC-NEXT: movabsq $extern_data@GOT, %rax ; LARGE-PIC-NEXT: movq (%rcx,%rax), %rax ; LARGE-PIC-NEXT: movl 8(%rax), %eax ; LARGE-PIC-NEXT: retq %rv = load i32, i32* getelementptr inbounds ([10 x i32], [10 x i32]* @extern_data, i64 0, i64 2) ret i32 %rv } define dso_local void @global_fn() #0 { ; CHECK-LABEL: global_fn: ; CHECK: # %bb.0: ; CHECK-NEXT: retq ret void } define internal void @static_fn() #0 { ; CHECK-LABEL: static_fn: ; CHECK: # %bb.0: ; CHECK-NEXT: retq ret void } declare void @extern_fn() define dso_local void ()* @lea_static_fn() #0 { ; SMALL-STATIC-LABEL: lea_static_fn: ; SMALL-STATIC: # %bb.0: ; SMALL-STATIC-NEXT: movl $static_fn, %eax ; SMALL-STATIC-NEXT: retq ; ; MEDIUM-STATIC-LABEL: lea_static_fn: ; MEDIUM-STATIC: # %bb.0: ; MEDIUM-STATIC-NEXT: movabsq $static_fn, %rax ; MEDIUM-STATIC-NEXT: retq ; ; LARGE-STATIC-LABEL: lea_static_fn: ; LARGE-STATIC: # %bb.0: ; LARGE-STATIC-NEXT: movabsq $static_fn, %rax ; LARGE-STATIC-NEXT: retq ; ; SMALL-PIC-LABEL: lea_static_fn: ; SMALL-PIC: # %bb.0: ; SMALL-PIC-NEXT: leaq static_fn(%rip), %rax ; SMALL-PIC-NEXT: retq ; ; MEDIUM-PIC-LABEL: lea_static_fn: ; MEDIUM-PIC: # %bb.0: ; MEDIUM-PIC-NEXT: movabsq $static_fn, %rax ; MEDIUM-PIC-NEXT: retq ; ; LARGE-PIC-LABEL: lea_static_fn: ; LARGE-PIC: # %bb.0: ; LARGE-PIC-NEXT: .L7$pb: ; LARGE-PIC-NEXT: leaq .L7$pb(%rip), %rax ; LARGE-PIC-NEXT: movabsq $_GLOBAL_OFFSET_TABLE_-.L7$pb, %rcx ; LARGE-PIC-NEXT: addq %rax, %rcx ; LARGE-PIC-NEXT: movabsq $static_fn@GOTOFF, %rax ; LARGE-PIC-NEXT: addq %rcx, %rax ; LARGE-PIC-NEXT: retq ret void ()* @static_fn } define dso_local void ()* @lea_global_fn() #0 { ; SMALL-STATIC-LABEL: lea_global_fn: ; SMALL-STATIC: # %bb.0: ; SMALL-STATIC-NEXT: movl $global_fn, %eax ; SMALL-STATIC-NEXT: retq ; ; MEDIUM-STATIC-LABEL: lea_global_fn: ; MEDIUM-STATIC: # %bb.0: ; MEDIUM-STATIC-NEXT: movabsq $global_fn, %rax ; MEDIUM-STATIC-NEXT: retq ; ; LARGE-STATIC-LABEL: lea_global_fn: ; LARGE-STATIC: # %bb.0: ; LARGE-STATIC-NEXT: movabsq $global_fn, %rax ; LARGE-STATIC-NEXT: retq ; ; SMALL-PIC-LABEL: lea_global_fn: ; SMALL-PIC: # %bb.0: ; SMALL-PIC-NEXT: leaq global_fn(%rip), %rax ; SMALL-PIC-NEXT: retq ; ; MEDIUM-PIC-LABEL: lea_global_fn: ; MEDIUM-PIC: # %bb.0: ; MEDIUM-PIC-NEXT: movabsq $global_fn, %rax ; MEDIUM-PIC-NEXT: retq ; ; LARGE-PIC-LABEL: lea_global_fn: ; LARGE-PIC: # %bb.0: ; LARGE-PIC-NEXT: .L8$pb: ; LARGE-PIC-NEXT: leaq .L8$pb(%rip), %rax ; LARGE-PIC-NEXT: movabsq $_GLOBAL_OFFSET_TABLE_-.L8$pb, %rcx ; LARGE-PIC-NEXT: addq %rax, %rcx ; LARGE-PIC-NEXT: movabsq $global_fn@GOTOFF, %rax ; LARGE-PIC-NEXT: addq %rcx, %rax ; LARGE-PIC-NEXT: retq ret void ()* @global_fn } define dso_local void ()* @lea_extern_fn() #0 { ; SMALL-STATIC-LABEL: lea_extern_fn: ; SMALL-STATIC: # %bb.0: ; SMALL-STATIC-NEXT: movl $extern_fn, %eax ; SMALL-STATIC-NEXT: retq ; ; MEDIUM-STATIC-LABEL: lea_extern_fn: ; MEDIUM-STATIC: # %bb.0: ; MEDIUM-STATIC-NEXT: movabsq $extern_fn, %rax ; MEDIUM-STATIC-NEXT: retq ; ; LARGE-STATIC-LABEL: lea_extern_fn: ; LARGE-STATIC: # %bb.0: ; LARGE-STATIC-NEXT: movabsq $extern_fn, %rax ; LARGE-STATIC-NEXT: retq ; ; SMALL-PIC-LABEL: lea_extern_fn: ; SMALL-PIC: # %bb.0: ; SMALL-PIC-NEXT: movq extern_fn@GOTPCREL(%rip), %rax ; SMALL-PIC-NEXT: retq ; ; MEDIUM-PIC-LABEL: lea_extern_fn: ; MEDIUM-PIC: # %bb.0: ; MEDIUM-PIC-NEXT: movq extern_fn@GOTPCREL(%rip), %rax ; MEDIUM-PIC-NEXT: retq ; ; LARGE-PIC-LABEL: lea_extern_fn: ; LARGE-PIC: # %bb.0: ; LARGE-PIC-NEXT: .L9$pb: ; LARGE-PIC-NEXT: leaq .L9$pb(%rip), %rax ; LARGE-PIC-NEXT: movabsq $_GLOBAL_OFFSET_TABLE_-.L9$pb, %rcx ; LARGE-PIC-NEXT: addq %rax, %rcx ; LARGE-PIC-NEXT: movabsq $extern_fn@GOT, %rax ; LARGE-PIC-NEXT: movq (%rcx,%rax), %rax ; LARGE-PIC-NEXT: retq ret void ()* @extern_fn } ; FIXME: The result is same for small, medium and large model, because we ; 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 { ; SMALL-STATIC-LABEL: load_thread_data: ; SMALL-STATIC: # %bb.0: ; SMALL-STATIC-NEXT: movq thread_data@GOTTPOFF(%rip), %rax ; SMALL-STATIC-NEXT: movl %fs:(%rax), %eax ; SMALL-STATIC-NEXT: retq ; ; MEDIUM-STATIC-LABEL: load_thread_data: ; MEDIUM-STATIC: # %bb.0: ; MEDIUM-STATIC-NEXT: movq thread_data@GOTTPOFF(%rip), %rax ; MEDIUM-STATIC-NEXT: movl %fs:(%rax), %eax ; MEDIUM-STATIC-NEXT: retq ; ; LARGE-STATIC-LABEL: load_thread_data: ; LARGE-STATIC: # %bb.0: ; LARGE-STATIC-NEXT: movq thread_data@GOTTPOFF(%rip), %rax ; LARGE-STATIC-NEXT: movl %fs:(%rax), %eax ; LARGE-STATIC-NEXT: retq ; ; SMALL-PIC-LABEL: load_thread_data: ; SMALL-PIC: # %bb.0: ; SMALL-PIC-NEXT: movq thread_data@GOTTPOFF(%rip), %rax ; SMALL-PIC-NEXT: movl %fs:(%rax), %eax ; SMALL-PIC-NEXT: retq ; ; MEDIUM-PIC-LABEL: load_thread_data: ; MEDIUM-PIC: # %bb.0: ; MEDIUM-PIC-NEXT: movq thread_data@GOTTPOFF(%rip), %rax ; MEDIUM-PIC-NEXT: movl %fs:(%rax), %eax ; MEDIUM-PIC-NEXT: retq ; ; LARGE-PIC-LABEL: load_thread_data: ; LARGE-PIC: # %bb.0: ; LARGE-PIC-NEXT: movq thread_data@GOTTPOFF(%rip), %rax ; LARGE-PIC-NEXT: movl %fs:(%rax), %eax ; LARGE-PIC-NEXT: retq ; %1 = load i32, i32* @thread_data, align 4 ret i32 %1 } 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 "}