llvm-mirror/test/MC/MachO/pushsection.s

// RUN: llvm-mc -triple i386-apple-darwin9 %s -o - | FileCheck %s

.text
// CHECK: .section __TEXT,__text

.pushsection __DATA, __data
// CHECK: .section __DATA,__data

.pushsection __TEXT, initcode
// CHECK: .section __TEXT,initcode
        
.popsection
// CHECK: .section __DATA,__data
        
.popsection
// CHECK: .section __TEXT,__text
Add `.pushsection', `.popsection', and `.previous' directives to Darwin ASM. There are situations where inline ASM may want to change the section -- for instance, to create a variable in the .data section. However, it cannot do this without (potentially) restoring to the wrong section. E.g.: asm volatile (".section __DATA, __data\n\t" ".globl _fnord\n\t" "_fnord: .quad 1f\n\t" ".text\n\t" "1:" :::); This may be wrong if this is inlined into a function that has a "section" attribute. The user should use `.pushsection' and `.popsection' here instead. The addition of `.previous' is added for completeness. <rdar://problem/12048387> llvm-svn: 161477 2012-08-08 08:30:30 +02:00			`// RUN: llvm-mc -triple i386-apple-darwin9 %s -o - \| FileCheck %s`

			`.text`
			`// CHECK: .section __TEXT,__text`

			`.pushsection __DATA, __data`
			`// CHECK: .section __DATA,__data`

			`.pushsection __TEXT, initcode`
			`// CHECK: .section __TEXT,initcode`

			`.popsection`
			`// CHECK: .section __DATA,__data`

			`.popsection`
			`// CHECK: .section __TEXT,__text`