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MC: Add support for .cfi_startproc simple

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This commit allows LLVM MC to process .cfi_startproc directives when
they are followed by an additional `simple' identifier. This signals to
elide the emission of target specific CFI instructions that would
normally occur initially.

This fixes PR16587.

Differential Revision: http://llvm-reviews.chandlerc.com/D2624


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200227 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Majnemer
2014-01-27 17:20:25 +00:00
parent bb0bb73da1
commit 0fd23cd6c2
8 changed files with 49 additions and 23 deletions
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16
test/MC/ELF/cfi.s
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@@ -212,6 +212,11 @@ f36:
nop
.cfi_endproc
f37:
.cfi_startproc simple
nop
.cfi_endproc
// CHECK: Section {
// CHECK: Index: 4
// CHECK-NEXT: Name: .eh_frame
@@ -221,7 +226,7 @@ f36:
// CHECK-NEXT: ]
// CHECK-NEXT: Address: 0x0
// CHECK-NEXT: Offset: 0x68
// CHECK-NEXT: Size: 1736
// CHECK-NEXT: Size: 1776
// CHECK-NEXT: Link: 0
// CHECK-NEXT: Info: 0
// CHECK-NEXT: AddressAlignment: 8
@@ -337,7 +342,9 @@ f36:
// CHECK-NEXT: 0690: 00000000 1C000000 00000000 017A5052
// CHECK-NEXT: 06A0: 00017810 0A980000 00000000 00001B0C
// CHECK-NEXT: 06B0: 07089001 10000000 24000000 00000000
// CHECK-NEXT: 06C0: 01000000 00000000
// CHECK-NEXT: 06C0: 01000000 00000000 10000000 00000000
// CHECK-NEXT: 06D0: 017A5200 01781001 1B000000 10000000
// CHECK-NEXT: 06E0: 18000000 00000000 01000000 00000000
// CHECK-NEXT: )
// CHECK-NEXT: }
@@ -348,8 +355,8 @@ f36:
// CHECK-NEXT: Flags [
// CHECK-NEXT: ]
// CHECK-NEXT: Address: 0x0
// CHECK-NEXT: Offset: 0xE30
// CHECK-NEXT: Size: 1728
// CHECK-NEXT: Offset: 0xE70
// CHECK-NEXT: Size: 1752
// CHECK-NEXT: Link: 7
// CHECK-NEXT: Info: 4
// CHECK-NEXT: AddressAlignment: 8
@@ -427,5 +434,6 @@ f36:
// CHECK-NEXT: 0x688 R_X86_64_PC32 .text 0x21
// CHECK-NEXT: 0x6A6 R_X86_64_PC64 foo 0x0
// CHECK-NEXT: 0x6BC R_X86_64_PC32 .text 0x22
// CHECK-NEXT: 0x6E4 R_X86_64_PC32 .text 0x23
// CHECK-NEXT: ]
// CHECK: }