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			120 lines
		
	
	
		
			4.3 KiB
		
	
	
	
		
			LLVM
		
	
	
	
	
	
		
		
			
		
	
	
			120 lines
		
	
	
		
			4.3 KiB
		
	
	
	
		
			LLVM
		
	
	
	
	
	
|   | ; RUN: llc -mtriple=arm64-linux-gnu -o - %s -mcpu=cyclone | FileCheck %s
 | ||
|  | ; RUN: llc -mtriple=arm64-linux-gnu -o - %s -O0 -fast-isel -mcpu=cyclone | FileCheck %s --check-prefix=CHECK-FAST
 | ||
|  | ; RUN: llc -mtriple=arm64-linux-gnu -relocation-model=pic -o - %s -mcpu=cyclone | FileCheck %s --check-prefix=CHECK-PIC
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|  | ; RUN: llc -mtriple=arm64-linux-gnu -O0 -fast-isel -relocation-model=pic -o - %s -mcpu=cyclone | FileCheck %s --check-prefix=CHECK-FAST-PIC
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|  | ; RUN: llc -mtriple=aarch64-fuchsia -code-model=kernel -o - %s -mcpu=cyclone | FileCheck %s
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|  | ; RUN: llc -mtriple=aarch64-fuchsia -code-model=kernel -o - %s -O0 -fast-isel -mcpu=cyclone | FileCheck %s --check-prefix=CHECK-FAST
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|  | ; RUN: llc -mtriple=aarch64-fuchsia -code-model=kernel -relocation-model=pic -o - %s -mcpu=cyclone | FileCheck %s --check-prefix=CHECK-PIC
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|  | ; RUN: llc -mtriple=aarch64-fuchsia -code-model=kernel -O0 -fast-isel -relocation-model=pic -o - %s -mcpu=cyclone | FileCheck %s --check-prefix=CHECK-FAST-PIC
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|  | 
 | ||
|  | @var8 = external global i8, align 1 | ||
|  | @var16 = external global i16, align 2 | ||
|  | @var32 = external global i32, align 4 | ||
|  | @var64 = external global i64, align 8 | ||
|  | 
 | ||
|  | define i8 @test_i8(i8 %new) { | ||
|  |   %val = load i8, i8* @var8, align 1 | ||
|  |   store i8 %new, i8* @var8 | ||
|  |   ret i8 %val | ||
|  | ; CHECK-LABEL: test_i8:
 | ||
|  | ; CHECK: adrp x[[HIREG:[0-9]+]], var8
 | ||
|  | ; CHECK: ldrb {{w[0-9]+}}, [x[[HIREG]], :lo12:var8]
 | ||
|  | ; CHECK: strb {{w[0-9]+}}, [x[[HIREG]], :lo12:var8]
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|  | 
 | ||
|  | ; CHECK-PIC-LABEL: test_i8:
 | ||
|  | ; CHECK-PIC: adrp x[[HIREG:[0-9]+]], :got:var8
 | ||
|  | ; CHECK-PIC: ldr x[[VAR_ADDR:[0-9]+]], [x[[HIREG]], :got_lo12:var8]
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|  | ; CHECK-PIC: ldrb {{w[0-9]+}}, [x[[VAR_ADDR]]]
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|  | 
 | ||
|  | ; CHECK-FAST: adrp x[[HIREG:[0-9]+]], var8
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|  | ; CHECK-FAST: ldrb {{w[0-9]+}}, [x[[HIREG]], :lo12:var8]
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|  | 
 | ||
|  | ; CHECK-FAST-PIC: adrp x[[HIREG:[0-9]+]], :got:var8
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|  | ; CHECK-FAST-PIC: ldr x[[VARADDR:[0-9]+]], [x[[HIREG]], :got_lo12:var8]
 | ||
|  | ; CHECK-FAST-PIC: ldr {{w[0-9]+}}, [x[[VARADDR]]]
 | ||
|  | } | ||
|  | 
 | ||
|  | define i16 @test_i16(i16 %new) { | ||
|  |   %val = load i16, i16* @var16, align 2 | ||
|  |   store i16 %new, i16* @var16 | ||
|  |   ret i16 %val | ||
|  | ; CHECK-LABEL: test_i16:
 | ||
|  | ; CHECK: adrp x[[HIREG:[0-9]+]], var16
 | ||
|  | ; CHECK: ldrh {{w[0-9]+}}, [x[[HIREG]], :lo12:var16]
 | ||
|  | ; CHECK: strh {{w[0-9]+}}, [x[[HIREG]], :lo12:var16]
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|  | 
 | ||
|  | ; CHECK-FAST: adrp x[[HIREG:[0-9]+]], var16
 | ||
|  | ; CHECK-FAST: ldrh {{w[0-9]+}}, [x[[HIREG]], :lo12:var16]
 | ||
|  | } | ||
|  | 
 | ||
|  | define i32 @test_i32(i32 %new) { | ||
|  |   %val = load i32, i32* @var32, align 4 | ||
|  |   store i32 %new, i32* @var32 | ||
|  |   ret i32 %val | ||
|  | ; CHECK-LABEL: test_i32:
 | ||
|  | ; CHECK: adrp x[[HIREG:[0-9]+]], var32
 | ||
|  | ; CHECK: ldr {{w[0-9]+}}, [x[[HIREG]], :lo12:var32]
 | ||
|  | ; CHECK: str {{w[0-9]+}}, [x[[HIREG]], :lo12:var32]
 | ||
|  | 
 | ||
|  | ; CHECK-FAST: adrp x[[HIREG:[0-9]+]], var32
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|  | ; CHECK-FAST: add {{x[0-9]+}}, x[[HIREG]], :lo12:var32
 | ||
|  | } | ||
|  | 
 | ||
|  | define i64 @test_i64(i64 %new) { | ||
|  |   %val = load i64, i64* @var64, align 8 | ||
|  |   store i64 %new, i64* @var64 | ||
|  |   ret i64 %val | ||
|  | ; CHECK-LABEL: test_i64:
 | ||
|  | ; CHECK: adrp x[[HIREG:[0-9]+]], var64
 | ||
|  | ; CHECK: ldr {{x[0-9]+}}, [x[[HIREG]], :lo12:var64]
 | ||
|  | ; CHECK: str {{x[0-9]+}}, [x[[HIREG]], :lo12:var64]
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|  | 
 | ||
|  | ; CHECK-FAST: adrp x[[HIREG:[0-9]+]], var64
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|  | ; CHECK-FAST: add {{x[0-9]+}}, x[[HIREG]], :lo12:var64
 | ||
|  | } | ||
|  | 
 | ||
|  | define i64* @test_addr() { | ||
|  |   ret i64* @var64 | ||
|  | ; CHECK-LABEL: test_addr:
 | ||
|  | ; CHECK: adrp [[HIREG:x[0-9]+]], var64
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|  | ; CHECK: add x0, [[HIREG]], :lo12:var64
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|  | 
 | ||
|  | ; CHECK-FAST: adrp [[HIREG:x[0-9]+]], var64
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|  | ; CHECK-FAST: add x0, [[HIREG]], :lo12:var64
 | ||
|  | } | ||
|  | 
 | ||
|  | @hiddenvar = hidden global i32 0, align 4 | ||
|  | @protectedvar = protected global i32 0, align 4 | ||
|  | 
 | ||
|  | define i32 @test_vis() { | ||
|  |   %lhs = load i32, i32* @hiddenvar, align 4 | ||
|  |   %rhs = load i32, i32* @protectedvar, align 4 | ||
|  |   %ret = add i32 %lhs, %rhs | ||
|  |   ret i32 %ret | ||
|  | ; CHECK-PIC: adrp {{x[0-9]+}}, hiddenvar
 | ||
|  | ; CHECK-PIC: ldr {{w[0-9]+}}, [{{x[0-9]+}}, :lo12:hiddenvar]
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|  | ; CHECK-PIC: adrp {{x[0-9]+}}, protectedvar
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|  | ; CHECK-PIC: ldr {{w[0-9]+}}, [{{x[0-9]+}}, :lo12:protectedvar]
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|  | } | ||
|  | 
 | ||
|  | @var_default = external global [2 x i32] | ||
|  | 
 | ||
|  | define i32 @test_default_align() { | ||
|  |   %addr = getelementptr [2 x i32], [2 x i32]* @var_default, i32 0, i32 0 | ||
|  |   %val = load i32, i32* %addr | ||
|  |   ret i32 %val | ||
|  | ; CHECK-LABEL: test_default_align:
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|  | ; CHECK: adrp x[[HIREG:[0-9]+]], var_default
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|  | ; CHECK: ldr w0, [x[[HIREG]], :lo12:var_default]
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|  | } | ||
|  | 
 | ||
|  | define i64 @test_default_unaligned() { | ||
|  |   %addr = bitcast [2 x i32]* @var_default to i64* | ||
|  |   %val = load i64, i64* %addr | ||
|  |   ret i64 %val | ||
|  | ; CHECK-LABEL: test_default_unaligned:
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|  | ; CHECK: adrp [[HIREG:x[0-9]+]], var_default
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|  | ; CHECK: add x[[ADDR:[0-9]+]], [[HIREG]], :lo12:var_default
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|  | ; CHECK: ldr x0, [x[[ADDR]]]
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|  | } |