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This patch produces the correct pointer size

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value in the 64 bit .eh_frame section.

It doesn't however allow exception handling to work
yet since it depends on the correct relocation model
being set in the ELF header flags.


Contributer: Jack Carter


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171881 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jack Carter 2013-01-08 18:53:20 +00:00
parent c7b902e7fe
commit 26853a5d1c
2 changed files with 56 additions and 0 deletions
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4
lib/Target/Mips/MCTargetDesc/MipsMCAsmInfo.cpp
View File

@ -24,6 +24,10 @@ MipsMCAsmInfo::MipsMCAsmInfo(const Target &T, StringRef TT) {
(TheTriple.getArch() == Triple::mips64))
IsLittleEndian = false;
if ((TheTriple.getArch() == Triple::mips64el) ||
(TheTriple.getArch() == Triple::mips64))
PointerSize = 8;
AlignmentIsInBytes = false;
Data16bitsDirective = "\t.2byte\t";
Data32bitsDirective = "\t.4byte\t";

52
test/MC/Mips/ef_frame.ll Normal file
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@ -0,0 +1,52 @@
; This tests .eh_frame CIE descriptor for the.
; Data alignment factor
; RUN: llc -filetype=obj -mcpu=mips64r2 -mattr=n64 -march=mips64el %s -o - \
; RUN: | llvm-objdump -s - | FileCheck %s
; N64
; CHECK: Contents of section .eh_frame:
; CHECK-NEXT: 0000 1c000000 00000000 017a504c 52000178 .........zPLR..x
; CHECK-NEXT: 0010 1f0b0000 00000000 00000000 000c1d00 ................
; CHECK-NEXT: 0020 2c000000 24000000 00000000 00000000 ,...$...........
; CHECK-NEXT: 0030 7c000000 00000000 08000000 00000000 |...............
; CHECK-NEXT: 0040 00440e10 489f019c 02000000 00000000 .D..H...........
; ModuleID = 'simple_throw.cpp'
@_ZTIi = external constant i8*
@str = private unnamed_addr constant [7 x i8] c"All ok\00"
define i32 @main() {
entry:
%exception.i = tail call i8* @__cxa_allocate_exception(i64 4) nounwind
%0 = bitcast i8* %exception.i to i32*
store i32 5, i32* %0, align 4
invoke void @__cxa_throw(i8* %exception.i, i8* bitcast (i8** @_ZTIi to i8*), i8* null) noreturn
to label %.noexc unwind label %return
.noexc: ; preds = %entry
unreachable
return: ; preds = %entry
%1 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
catch i8* null
%2 = extractvalue { i8*, i32 } %1, 0
%3 = tail call i8* @__cxa_begin_catch(i8* %2) nounwind
%puts = tail call i32 @puts(i8* getelementptr inbounds ([7 x i8]* @str, i64 0, i64 0))
tail call void @__cxa_end_catch()
ret i32 0
}
declare i32 @__gxx_personality_v0(...)
declare i8* @__cxa_begin_catch(i8*)
declare void @__cxa_end_catch()
declare i8* @__cxa_allocate_exception(i64)
declare void @__cxa_throw(i8*, i8*, i8*)
declare i32 @puts(i8* nocapture) nounwind