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92f2c530f2
They are currently implicit because TargetMachine::shouldAssumeDSOLocal implies dso_local. For external data, clang -fno-pic emits the dso_local specifier for ELF and non-MinGW COFF. Adding explicit dso_local makes these tests in align with the clang behavior and helps implementing an option to use GOT indirection for external data access in -fno-pic mode (to avoid copy relocations).
74 lines
2.6 KiB
LLVM
74 lines
2.6 KiB
LLVM
; RUN: llc < %s -code-model=small | FileCheck -check-prefix CHECK-SMALL %s
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; RUN: llc < %s -code-model=kernel | FileCheck -check-prefix CHECK-KERNEL %s
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; RUN: not --crash llc < %s -code-model=tiny 2>&1 | FileCheck -check-prefix CHECK-TINY %s
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
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target triple = "x86_64-unknown-linux-gnu"
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@data = external dso_local global [0 x i32] ; <[0 x i32]*> [#uses=5]
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; CHECK-TINY: Target does not support the tiny CodeModel
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define i32 @foo() nounwind readonly {
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entry:
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; CHECK-SMALL-LABEL: foo:
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; CHECK-SMALL: movl data(%rip), %eax
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; CHECK-KERNEL-LABEL: foo:
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; CHECK-KERNEL: movl data(%rip), %eax
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%0 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @data, i64 0, i64 0), align 4 ; <i32> [#uses=1]
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ret i32 %0
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}
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define i32 @foo1() nounwind readonly {
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entry:
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; CHECK-SMALL-LABEL: foo1:
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; CHECK-SMALL: movl data+16777212(%rip), %eax
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; CHECK-KERNEL-LABEL: foo1:
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; CHECK-KERNEL: movl data+16777212(%rip), %eax
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%0 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @data, i32 0, i64 4194303), align 4 ; <i32> [#uses=1]
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ret i32 %0
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}
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define i32 @foo2() nounwind readonly {
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entry:
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; CHECK-SMALL-LABEL: foo2:
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; CHECK-SMALL: movl data+40(%rip), %eax
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; CHECK-KERNEL-LABEL: foo2:
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; CHECK-KERNEL: movl data+40(%rip), %eax
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%0 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @data, i32 0, i64 10), align 4 ; <i32> [#uses=1]
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ret i32 %0
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}
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define i32 @foo3() nounwind readonly {
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entry:
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; CHECK-SMALL-LABEL: foo3:
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; CHECK-SMALL: movl data-40(%rip), %eax
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; CHECK-KERNEL-LABEL: foo3:
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; CHECK-KERNEL: movq $-40, %rax
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; CHECK-KERNEL: movl data(%rax), %eax
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%0 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @data, i32 0, i64 -10), align 4 ; <i32> [#uses=1]
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ret i32 %0
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}
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define i32 @foo4() nounwind readonly {
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entry:
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; FIXME: We really can use movabsl here!
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; CHECK-SMALL-LABEL: foo4:
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; CHECK-SMALL: movl $16777216, %eax
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; CHECK-SMALL: movl data(%rax), %eax
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; CHECK-KERNEL-LABEL: foo4:
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; CHECK-KERNEL: movl data+16777216(%rip), %eax
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%0 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @data, i32 0, i64 4194304), align 4 ; <i32> [#uses=1]
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ret i32 %0
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}
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define i32 @foo5() nounwind readonly {
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entry:
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; CHECK-SMALL-LABEL: foo5:
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; CHECK-SMALL: movl data-16777216(%rip), %eax
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; CHECK-KERNEL-LABEL: foo5:
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; CHECK-KERNEL: movq $-16777216, %rax
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; CHECK-KERNEL: movl data(%rax), %eax
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%0 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @data, i32 0, i64 -4194304), align 4 ; <i32> [#uses=1]
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ret i32 %0
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}
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