mirror of
https://github.com/c64scene-ar/llvm-6502.git
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f90c8c7063
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206282 91177308-0d34-0410-b5e6-96231b3b80d8
68 lines
2.4 KiB
LLVM
68 lines
2.4 KiB
LLVM
; RUN: llc -mtriple=aarch64-none-linux-gnu -o - < %s | FileCheck %s --check-prefix=CHECK-AARCH64
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; RUN: llc -mtriple=aarch64-none-linux-gnu -code-model=large -o - < %s | FileCheck --check-prefix=CHECK-LARGE %s
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; RUN: llc -mtriple=arm64-none-linux-gnu -o - %s | FileCheck %s --check-prefix=CHECK-ARM64
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; RUN: llc -mtriple=arm64-none-linux-gnu -code-model=large -o - %s | FileCheck --check-prefix=CHECK-LARGE %s
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declare extern_weak i32 @var()
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define i32()* @foo() {
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; The usual ADRP/ADD pair can't be used for a weak reference because it must
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; evaluate to 0 if the symbol is undefined. We use a litpool entry.
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ret i32()* @var
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; CHECK-AARCH64: .LCPI0_0:
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; CHECK-AARCH64-NEXT: .xword var
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; CHECK-AARCH64: ldr x0, [{{x[0-9]+}}, #:lo12:.LCPI0_0]
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; CHECK-ARM64: adrp x[[ADDRHI:[0-9]+]], :got:var
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; CHECK-ARM64: ldr x0, [x[[ADDRHI]], :got_lo12:var]
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; In the large model, the usual relocations are absolute and can
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; materialise 0.
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; CHECK-LARGE: movz x0, #:abs_g3:var
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; CHECK-LARGE: movk x0, #:abs_g2_nc:var
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; CHECK-LARGE: movk x0, #:abs_g1_nc:var
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; CHECK-LARGE: movk x0, #:abs_g0_nc:var
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}
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@arr_var = extern_weak global [10 x i32]
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define i32* @bar() {
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%addr = getelementptr [10 x i32]* @arr_var, i32 0, i32 5
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; CHECK-AARCH64: .LCPI1_0:
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; CHECK-AARCH64-NEXT: .xword arr_var
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; CHECK-AARCH64: ldr [[BASE:x[0-9]+]], [{{x[0-9]+}}, #:lo12:.LCPI1_0]
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; CHECK-AARCH64: add x0, [[BASE]], #20
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; CHECK-ARM64: adrp x[[ADDRHI:[0-9]+]], :got:arr_var
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; CHECK-ARM64: ldr [[BASE:x[0-9]+]], [x[[ADDRHI]], :got_lo12:arr_var]
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; CHECK-ARM64: add x0, [[BASE]], #20
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ret i32* %addr
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; In the large model, the usual relocations are absolute and can
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; materialise 0.
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; CHECK-LARGE: movz [[ADDR:x[0-9]+]], #:abs_g3:arr_var
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; CHECK-LARGE: movk [[ADDR]], #:abs_g2_nc:arr_var
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; CHECK-LARGE: movk [[ADDR]], #:abs_g1_nc:arr_var
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; CHECK-LARGE: movk [[ADDR]], #:abs_g0_nc:arr_var
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}
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@defined_weak_var = internal unnamed_addr global i32 0
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define i32* @wibble() {
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ret i32* @defined_weak_var
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; CHECK-AARCH64: adrp [[BASE:x[0-9]+]], defined_weak_var
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; CHECK-AARCH64: add x0, [[BASE]], #:lo12:defined_weak_var
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; CHECK-ARM64: adrp [[BASE:x[0-9]+]], defined_weak_var
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; CHECK-ARM64: add x0, [[BASE]], :lo12:defined_weak_var
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; CHECK-LARGE: movz x0, #:abs_g3:defined_weak_var
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; CHECK-LARGE: movk x0, #:abs_g2_nc:defined_weak_var
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; CHECK-LARGE: movk x0, #:abs_g1_nc:defined_weak_var
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; CHECK-LARGE: movk x0, #:abs_g0_nc:defined_weak_var
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}
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