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0c78583bf6
If a function is going in an unique section (because of -ffunction-sections for example), putting a jump table in .rodata will keep .rodata alive and that will keep alive any other function that also has a jump table. Instead, put the jump table in a unique section that is associated with the function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231961 91177308-0d34-0410-b5e6-96231b3b80d8
302 lines
7.5 KiB
LLVM
302 lines
7.5 KiB
LLVM
; RUN: llc < %s -mtriple=i386-unknown-linux-gnu | FileCheck %s -check-prefix=LINUX
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; RUN: llc < %s -mtriple=i386-apple-darwin9.7 | FileCheck %s -check-prefix=DARWIN
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; RUN: llc < %s -mtriple=i386-apple-darwin10 -relocation-model=static | FileCheck %s -check-prefix=DARWIN-STATIC
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; RUN: llc < %s -mtriple=x86_64-apple-darwin10 | FileCheck %s -check-prefix=DARWIN64
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; RUN: llc < %s -mtriple=i386-unknown-linux-gnu -data-sections -function-sections | FileCheck %s -check-prefix=LINUX-SECTIONS
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; RUN: llc < %s -mtriple=i386-unknown-linux-gnu -function-sections | FileCheck %s -check-prefix=LINUX-FUNC-SECTIONS
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; RUN: llc < %s -mtriple=x86_64-pc-linux -data-sections -function-sections -relocation-model=pic | FileCheck %s -check-prefix=LINUX-SECTIONS-PIC
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; RUN: llc < %s -mtriple=i686-pc-win32 -data-sections -function-sections | FileCheck %s -check-prefix=WIN32-SECTIONS
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; RUN: llc < %s -mtriple=i686-pc-win32 -function-sections | FileCheck %s -check-prefix=WIN32-FUNC-SECTIONS
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define void @F1() {
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ret void
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}
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; WIN32-SECTIONS: .section .text,"xr",one_only,_F1
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; WIN32-SECTIONS: .globl _F1
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define void @F2(i32 %y) {
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bb0:
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switch i32 %y, label %bb5 [
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i32 1, label %bb1
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i32 2, label %bb2
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i32 3, label %bb3
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i32 4, label %bb4
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]
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bb1:
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ret void
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bb2:
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ret void
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bb3:
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ret void
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bb4:
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ret void
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bb5:
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ret void
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}
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; LINUX: .size F2,
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; LINUX-NEX: .cfi_endproc
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; LINUX-NEX: .section .rodata,"a",@progbits
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; LINUX-SECTIONS: .section .text.F2,"ax",@progbits
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; LINUX-SECTIONS: .size F2,
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; LINUX-SECTIONS-NEXT: .cfi_endproc
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; LINUX-SECTIONS-NEXT: .section .rodata.F2,"a",@progbits
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; LINUX-FUNC-SECTIONS: .section .text.F2,"ax",@progbits
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; LINUX-FUNC-SECTIONS: .size F2,
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; LINUX-FUNC-SECTIONS-NEXT: .cfi_endproc
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; LINUX-FUNC-SECTIONS-NEXT: .section .rodata.F2,"a",@progbits
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; WIN32-FUNC-SECTIONS: .section .text,"xr",one_only,_F2
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; WIN32-FUNC-SECTIONS-NOT: .section
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; WIN32-FUNC-SECTIONS: .section .rdata,"dr",associative,_F2
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; LINUX-SECTIONS-PIC: .section .text.F2,"ax",@progbits
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; LINUX-SECTIONS-PIC: .size F2,
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; LINUX-SECTIONS-PIC-NEXT: .cfi_endproc
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; LINUX-SECTIONS-PIC-NEXT: .section .rodata.F2,"a",@progbits
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declare void @G()
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define void @F3(i32 %y) {
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bb0:
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invoke void @G()
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to label %bb2 unwind label %bb1
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bb1:
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landingpad { i8*, i32 } personality i8* bitcast (void ()* @G to i8*)
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catch i8* null
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br label %bb2
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bb2:
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switch i32 %y, label %bb7 [
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i32 1, label %bb3
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i32 2, label %bb4
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i32 3, label %bb5
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i32 4, label %bb6
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]
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bb3:
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ret void
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bb4:
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ret void
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bb5:
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ret void
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bb6:
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ret void
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bb7:
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ret void
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}
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; DARWIN64: _F3:
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; DARWIN64: Lfunc_end
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; DARWIN64-NEXT: .cfi_endproc
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; DARWIN64-NOT: .section
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; DARWIN64: LJTI{{.*}}:
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; DARWIN64-NEXT: .long
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; DARWIN64-NEXT: .long
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; DARWIN64-NEXT: .long
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; DARWIN64-NEXT: .long
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; DARWIN64-NEXT: .section __TEXT,__gcc_except_tab
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; int G1;
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@G1 = common global i32 0
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; LINUX: .type G1,@object
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; LINUX: .comm G1,4,4
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; DARWIN: .comm _G1,4,2
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; const int G2 __attribute__((weak)) = 42;
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@G2 = weak_odr unnamed_addr constant i32 42
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; TODO: linux drops this into .rodata, we drop it into ".gnu.linkonce.r.G2"
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; DARWIN: .section __TEXT,__const_coal,coalesced
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; DARWIN: _G2:
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; DARWIN: .long 42
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; int * const G3 = &G1;
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@G3 = unnamed_addr constant i32* @G1
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; DARWIN: .section __DATA,__const
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; DARWIN: .globl _G3
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; DARWIN: _G3:
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; DARWIN: .long _G1
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; LINUX: .section .rodata,"a",@progbits
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; LINUX: .globl G3
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; LINUX-SECTIONS: .section .rodata.G3,"a",@progbits
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; LINUX-SECTIONS: .globl G3
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; WIN32-SECTIONS: .section .rdata,"dr",one_only,_G3
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; WIN32-SECTIONS: .globl _G3
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; _Complex long long const G4 = 34;
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@G4 = private unnamed_addr constant {i64,i64} { i64 34, i64 0 }
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; DARWIN: .section __TEXT,__literal16,16byte_literals
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; DARWIN: L_G4:
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; DARWIN: .long 34
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; DARWIN-STATIC: .section __TEXT,__literal16,16byte_literals
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; DARWIN-STATIC: L_G4:
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; DARWIN-STATIC: .long 34
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; DARWIN64: .section __TEXT,__literal16,16byte_literals
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; DARWIN64: L_G4:
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; DARWIN64: .quad 34
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; int G5 = 47;
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@G5 = global i32 47
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; LINUX: .data
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; LINUX: .globl G5
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; LINUX: G5:
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; LINUX: .long 47
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; DARWIN: .section __DATA,__data
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; DARWIN: .globl _G5
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; DARWIN: _G5:
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; DARWIN: .long 47
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; PR4584
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@"foo bar" = linkonce global i32 42
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; LINUX: .type "foo bar",@object
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; LINUX: .weak "foo bar"
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; LINUX: "foo bar":
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; DARWIN: .section __DATA,__datacoal_nt,coalesced
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; DARWIN: .globl "_foo bar"
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; DARWIN: .weak_definition "_foo bar"
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; DARWIN: "_foo bar":
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; PR4650
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@G6 = weak_odr unnamed_addr constant [1 x i8] c"\01"
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; LINUX: .type G6,@object
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; LINUX: .weak G6
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; LINUX: G6:
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; LINUX: .byte 1
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; LINUX: .size G6, 1
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; DARWIN: .section __TEXT,__const_coal,coalesced
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; DARWIN: .globl _G6
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; DARWIN: .weak_definition _G6
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; DARWIN:_G6:
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; DARWIN: .byte 1
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@G7 = unnamed_addr constant [10 x i8] c"abcdefghi\00"
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; DARWIN: __TEXT,__cstring,cstring_literals
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; DARWIN: .globl _G7
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; DARWIN: _G7:
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; DARWIN: .asciz "abcdefghi"
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; LINUX: .section .rodata.str1.1,"aMS",@progbits,1
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; LINUX: .globl G7
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; LINUX: G7:
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; LINUX: .asciz "abcdefghi"
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; LINUX-SECTIONS: .section .rodata.str1.1,"aMS",@progbits,1
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; LINUX-SECTIONS: .globl G7
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; WIN32-SECTIONS: .section .rdata,"dr",one_only,_G7
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; WIN32-SECTIONS: .globl _G7
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@G8 = unnamed_addr constant [4 x i16] [ i16 1, i16 2, i16 3, i16 0 ]
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; DARWIN: .section __TEXT,__const
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; DARWIN: .globl _G8
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; DARWIN: _G8:
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; LINUX: .section .rodata.str2.2,"aMS",@progbits,2
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; LINUX: .globl G8
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; LINUX:G8:
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@G9 = unnamed_addr constant [4 x i32] [ i32 1, i32 2, i32 3, i32 0 ]
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; DARWIN: .globl _G9
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; DARWIN: _G9:
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; LINUX: .section .rodata.str4.4,"aMS",@progbits,4
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; LINUX: .globl G9
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; LINUX:G9
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@G10 = weak global [100 x i32] zeroinitializer, align 32 ; <[100 x i32]*> [#uses=0]
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; DARWIN: .section __DATA,__datacoal_nt,coalesced
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; DARWIN: .globl _G10
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; DARWIN: .weak_definition _G10
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; DARWIN: .align 5
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; DARWIN: _G10:
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; DARWIN: .space 400
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; LINUX: .bss
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; LINUX: .weak G10
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; LINUX: .align 32
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; LINUX: G10:
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; LINUX: .zero 400
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;; Zero sized objects should round up to 1 byte in zerofill directives.
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; rdar://7886017
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@G11 = global [0 x i32] zeroinitializer
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@G12 = global {} zeroinitializer
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@G13 = global { [0 x {}] } zeroinitializer
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; DARWIN: .globl _G11
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; DARWIN: .zerofill __DATA,__common,_G11,1,2
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; DARWIN: .globl _G12
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; DARWIN: .zerofill __DATA,__common,_G12,1,3
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; DARWIN: .globl _G13
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; DARWIN: .zerofill __DATA,__common,_G13,1,3
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@G14 = private unnamed_addr constant [4 x i8] c"foo\00", align 1
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; LINUX-SECTIONS: .type .LG14,@object # @G14
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; LINUX-SECTIONS: .section .rodata.str1.1,"aMS",@progbits,1
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; LINUX-SECTIONS: .LG14:
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; LINUX-SECTIONS: .asciz "foo"
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; LINUX-SECTIONS: .size .LG14, 4
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; WIN32-SECTIONS: .section .rdata,"dr"
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; WIN32-SECTIONS: L_G14:
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; WIN32-SECTIONS: .asciz "foo"
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; cannot be merged on MachO, but can on other formats.
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@G15 = unnamed_addr constant i64 0
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; LINUX: .section .rodata.cst8,"aM",@progbits,8
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; LINUX: G15:
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; DARWIN: .section __TEXT,__const
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; DARWIN: _G15:
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; DARWIN-STATIC: .section __TEXT,__const
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; DARWIN-STATIC: _G15:
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; DARWIN64: .section __TEXT,__const
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; DARWIN64: _G15:
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; LINUX-SECTIONS: .section .rodata.cst8,"aM",@progbits,8
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; LINUX-SECTIONS: G15:
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; WIN32-SECTIONS: .section .rdata,"dr",one_only,_G15
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; WIN32-SECTIONS: _G15:
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