Refine the ARM EHABI test cases.

Since we have ARM unwind directive parser and assembler, we
can check the correctness in two stages:

1. From LLVM assembly (.ll) to ARM assembly (.s)
2. From ARM assembly (.s) to ELF object file (.o)

We already have several "*.s to *.o" test cases.  This CL adds
some "*.ll to *.s" test cases and removes the redundant "*.ll to *.o"
test cases.

New test cases to check "*.ll to *.s" code generator:

- ehabi.ll: Check the correctness of the generated unwind directives.
- section-name.ll: Check the section name of functions.

Removed test cases:

- ehabi-mc-cantunwind.ll
  (Covered by ehabi-cantunwind.ll, and eh-directive-cantunwind.s)
- ehabi-mc-compact-pr0.ll
  (Covered by ehabi.ll, eh-compact-pr0.s, eh-directive-save.s, and
   eh-directive-setfp.s)
- ehabi-mc-compact-pr1.ll
  (Covered by ehabi.ll, eh-compact-pr1.s, eh-directive-save.s, and
   eh-directive-setfp.s)
- ehabi-mc.ll
  (Covered by ehabi.ll, and eh-directive-integrated-test.s)
- ehabi-mc-section-group.ll
  (Covered by section-name.ll, and eh-directive-section-comdat.s)
- ehabi-mc-section.ll
  (Covered by section-name.ll, and eh-directive-section.s)
- ehabi-mc-sh_link.ll
  (Covered by eh-directive-text-section.s, and eh-directive-section.s)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183628 91177308-0d34-0410-b5e6-96231b3b80d8

9 files changed, 323 insertions, 413 deletions

diff --git a/test/CodeGen/ARM/ehabi-mc-cantunwind.ll b/test/CodeGen/ARM/ehabi-mc-cantunwind.ll
deleted file mode 100644
index 698d76e565..0000000000
--- a/test/CodeGen/ARM/ehabi-mc-cantunwind.ll
+++ /dev/null
@@ -1,14 +0,0 @@
-; RUN: llc -mtriple arm-unknown-linux-gnueabi \
-; RUN:     -arm-enable-ehabi -arm-enable-ehabi-descriptors \
-; RUN:     -filetype=obj -o - %s \
-; RUN:   | llvm-objdump -s - \
-; RUN:   | FileCheck %s
-
-define void @test() nounwind {
-entry:
-  ret void
-}
-
-; CHECK: section .text
-; CHECK: section .ARM.exidx
-; CHECK-NEXT: 0000 00000000 01000000
diff --git a/test/CodeGen/ARM/ehabi-mc-compact-pr0.ll b/test/CodeGen/ARM/ehabi-mc-compact-pr0.ll
deleted file mode 100644
index 637a989240..0000000000
--- a/test/CodeGen/ARM/ehabi-mc-compact-pr0.ll
+++ /dev/null
@@ -1,49 +0,0 @@
-; RUN: llc -mtriple armv7-unknown-linux-gnueabi \
-; RUN:     -arm-enable-ehabi -arm-enable-ehabi-descriptors \
-; RUN:     -disable-fp-elim -filetype=obj -o - %s \
-; RUN:   | llvm-objdump -s - \
-; RUN:   | FileCheck %s --check-prefix=CHECK
-
-; RUN: llc -mtriple armv7-unknown-linux-gnueabi \
-; RUN:     -arm-enable-ehabi -arm-enable-ehabi-descriptors \
-; RUN:     -filetype=obj -o - %s \
-; RUN:   | llvm-objdump -s - \
-; RUN:   | FileCheck %s --check-prefix=CHECK-FP-ELIM
-
-; RUN: llc -mtriple armv7-unknown-linux-gnueabi \
-; RUN:     -arm-enable-ehabi -arm-enable-ehabi-descriptors \
-; RUN:     -disable-fp-elim -filetype=obj -o - %s \
-; RUN:   | llvm-objdump -r - \
-; RUN:   | FileCheck %s --check-prefix=CHECK-RELOC
-
-; RUN: llc -mtriple armv7-unknown-linux-gnueabi \
-; RUN:     -arm-enable-ehabi -arm-enable-ehabi-descriptors \
-; RUN:     -filetype=obj -o - %s \
-; RUN:   | llvm-objdump -r - \
-; RUN:   | FileCheck %s --check-prefix=CHECK-RELOC
-
-define void @_Z4testv() {
-entry:
-  tail call void @_Z15throw_exceptionv()
-  ret void
-}
-
-declare void @_Z15throw_exceptionv()
-
-; CHECK-NOT: section .ARM.extab
-; CHECK: section .text
-; CHECK-NOT: section .ARM.extab
-; CHECK: section .ARM.exidx
-; CHECK-NEXT: 0000 00000000 80849b80
-; CHECK-NOT: section .ARM.extab
-
-; CHECK-FP-ELIM-NOT: section .ARM.extab
-; CHECK-FP-ELIM: section .text
-; CHECK-FP-ELIM-NOT: section .ARM.extab
-; CHECK-FP-ELIM: section .ARM.exidx
-; CHECK-FP-ELIM-NEXT: 0000 00000000 b0808480
-; CHECK-FP-ELIM-NOT: section .ARM.extab
-
-; CHECK-RELOC: RELOCATION RECORDS FOR [.rel.ARM.exidx]
-; CHECK-RELOC-NEXT: 0 R_ARM_PREL31 .text
-; CHECK-RELOC-NEXT: 0 R_ARM_NONE __aeabi_unwind_cpp_pr0
diff --git a/test/CodeGen/ARM/ehabi-mc-compact-pr1.ll b/test/CodeGen/ARM/ehabi-mc-compact-pr1.ll
deleted file mode 100644
index 5a54889d6a..0000000000
--- a/test/CodeGen/ARM/ehabi-mc-compact-pr1.ll
+++ /dev/null
@@ -1,62 +0,0 @@
-; RUN: llc -mtriple armv7-unknown-linux-gnueabi \
-; RUN:     -arm-enable-ehabi -arm-enable-ehabi-descriptors \
-; RUN:     -disable-fp-elim -filetype=obj -o - %s \
-; RUN:   | llvm-objdump -s - \
-; RUN:   | FileCheck %s --check-prefix=CHECK
-
-; RUN: llc -mtriple armv7-unknown-linux-gnueabi \
-; RUN:     -arm-enable-ehabi -arm-enable-ehabi-descriptors \
-; RUN:     -filetype=obj -o - %s \
-; RUN:   | llvm-objdump -s - \
-; RUN:   | FileCheck %s --check-prefix=CHECK-FP-ELIM
-
-; RUN: llc -mtriple armv7-unknown-linux-gnueabi \
-; RUN:     -arm-enable-ehabi -arm-enable-ehabi-descriptors \
-; RUN:     -disable-fp-elim -filetype=obj -o - %s \
-; RUN:   | llvm-objdump -r - \
-; RUN:   | FileCheck %s --check-prefix=CHECK-RELOC
-
-; RUN: llc -mtriple armv7-unknown-linux-gnueabi \
-; RUN:     -arm-enable-ehabi -arm-enable-ehabi-descriptors \
-; RUN:     -filetype=obj -o - %s \
-; RUN:   | llvm-objdump -r - \
-; RUN:   | FileCheck %s --check-prefix=CHECK-FP-ELIM-RELOC
-
-define i32 @_Z3addiiiiiiii(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e, i32 %f, i32 %g, i32 %h) {
-entry:
-  %add = add nsw i32 %b, %a
-  %add1 = add nsw i32 %add, %c
-  %add2 = add nsw i32 %add1, %d
-  tail call void @_Z15throw_exceptioni(i32 %add2)
-  %add3 = add nsw i32 %f, %e
-  %add4 = add nsw i32 %add3, %g
-  %add5 = add nsw i32 %add4, %h
-  tail call void @_Z15throw_exceptioni(i32 %add5)
-  %add6 = add nsw i32 %add5, %add2
-  ret i32 %add6
-}
-
-declare void @_Z15throw_exceptioni(i32)
-
-; CHECK-NOT: section .ARM.extab
-; CHECK: section .text
-; CHECK: section .ARM.extab
-; CHECK-NEXT: 0000 419b0181 b0b08384
-; CHECK: section .ARM.exidx
-; CHECK-NEXT: 0000 00000000 00000000
-; CHECK-NOT: section .ARM.extab
-
-; CHECK-FP-ELIM-NOT: section .ARM.extab
-; CHECK-FP-ELIM: section .text
-; CHECK-FP-ELIM-NOT: section .ARM.extab
-; CHECK-FP-ELIM: section .ARM.exidx
-; CHECK-FP-ELIM-NEXT: 0000 00000000 b0838480
-; CHECK-FP-ELIM-NOT: section .ARM.extab
-
-; CHECK-RELOC: RELOCATION RECORDS FOR [.rel.ARM.exidx]
-; CHECK-RELOC-NEXT: 0 R_ARM_PREL31 .text
-; CHECK-RELOC-NEXT: 0 R_ARM_NONE __aeabi_unwind_cpp_pr1
-
-; CHECK-FP-ELIM-RELOC: RELOCATION RECORDS FOR [.rel.ARM.exidx]
-; CHECK-FP-ELIM-RELOC-NEXT: 0 R_ARM_PREL31 .text
-; CHECK-FP-ELIM-RELOC-NEXT: 0 R_ARM_NONE __aeabi_unwind_cpp_pr0
diff --git a/test/CodeGen/ARM/ehabi-mc-section-group.ll b/test/CodeGen/ARM/ehabi-mc-section-group.ll
deleted file mode 100644
index 616aa1ba46..0000000000
--- a/test/CodeGen/ARM/ehabi-mc-section-group.ll
+++ /dev/null
@@ -1,88 +0,0 @@
-; Test section group of the function with linkonce_odr
-
-; The instantiation of C++ function template will come with linkonce_odr,
-; which indicates that the linker can remove the duplicated instantiation.
-; However, to make this feature work, we have to group the section properly.
-; .text, .ARM.extab, and .ARM.exidx should be grouped together.
-
-; RUN: llc -mtriple arm-unknown-linux-gnueabi \
-; RUN:     -arm-enable-ehabi -arm-enable-ehabi-descriptors \
-; RUN:     -filetype=obj -o - %s \
-; RUN:   | llvm-readobj -s -sd \
-; RUN:   | FileCheck %s
-
-target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:64:128-a0:0:64-n32-S64"
-target triple = "armv4t--linux-gnueabi"
-
-define void @_Z11instantiatev() {
-entry:
-  tail call void @_Z4testIidEvT_S0_S0_S0_S0_T0_S1_S1_S1_S1_(i32 1, i32 2, i32 3, i32 4, i32 5, double 1.000000e-01, double 2.000000e-01, double 3.000000e-01, double 4.000000e-01, double 5.000000e-01)
-  ret void
-}
-
-define linkonce_odr void @_Z4testIidEvT_S0_S0_S0_S0_T0_S1_S1_S1_S1_(i32 %u1, i32 %u2, i32 %u3, i32 %u4, i32 %u5, double %v1, double %v2, double %v3, double %v4, double %v5) {
-entry:
-  invoke void @_Z5printiiiii(i32 %u1, i32 %u2, i32 %u3, i32 %u4, i32 %u5)
-          to label %try.cont unwind label %lpad
-
-lpad:                                             ; preds = %entry
-  %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
-          catch i8* null
-  %1 = extractvalue { i8*, i32 } %0, 0
-  %2 = tail call i8* @__cxa_begin_catch(i8* %1) nounwind
-  invoke void @_Z5printddddd(double %v1, double %v2, double %v3, double %v4, double %v5)
-          to label %invoke.cont2 unwind label %lpad1
-
-invoke.cont2:                                     ; preds = %lpad
-  tail call void @__cxa_end_catch()
-  br label %try.cont
-
-try.cont:                                         ; preds = %entry, %invoke.cont2
-  ret void
-
-lpad1:                                            ; preds = %lpad
-  %3 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
-          cleanup
-  invoke void @__cxa_end_catch()
-          to label %eh.resume unwind label %terminate.lpad
-
-eh.resume:                                        ; preds = %lpad1
-  resume { i8*, i32 } %3
-
-terminate.lpad:                                   ; preds = %lpad1
-  %4 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
-          catch i8* null
-  tail call void @_ZSt9terminatev() noreturn nounwind
-  unreachable
-}
-
-declare void @_Z5printiiiii(i32, i32, i32, i32, i32)
-
-declare i32 @__gxx_personality_v0(...)
-
-declare i8* @__cxa_begin_catch(i8*)
-
-declare void @_Z5printddddd(double, double, double, double, double)
-
-declare void @__cxa_end_catch()
-
-declare void @_ZSt9terminatev()
-
-; CHECK:        Section {
-; CHECK:          Index: 1
-; CHECK-NEXT:     Name: .group (47)
-; CHECK:          SectionData (
-; CHECK-NEXT:       0000: 01000000 09000000 0B000000 0D000000
-; CHECK-NEXT:     )
-
-; CHECK:        Section {
-; CHECK:          Index: 9
-; CHECK-NEXT:     Name: .text._Z4testIidEvT_S0_S0_S0_S0_T0_S1_S1_S1_S1_ (214)
-
-; CHECK:        Section {
-; CHECK:          Index: 11
-; CHECK-NEXT:     Name: .ARM.extab.text._Z4testIidEvT_S0_S0_S0_S0_T0_S1_S1_S1_S1_ (204)
-
-; CHECK:        Section {
-; CHECK:          Index: 13
-; CHECK-NEXT:     Name: .ARM.exidx.text._Z4testIidEvT_S0_S0_S0_S0_T0_S1_S1_S1_S1_ (90)
diff --git a/test/CodeGen/ARM/ehabi-mc-section.ll b/test/CodeGen/ARM/ehabi-mc-section.ll
deleted file mode 100644
index 51ae25a3be..0000000000
--- a/test/CodeGen/ARM/ehabi-mc-section.ll
+++ /dev/null
@@ -1,71 +0,0 @@
-; RUN: llc -mtriple armv7-unknown-linux-gnueabi \
-; RUN:     -arm-enable-ehabi -arm-enable-ehabi-descriptors \
-; RUN:     -disable-fp-elim -filetype=obj -o - %s \
-; RUN:   | llvm-objdump -s - \
-; RUN:   | FileCheck %s --check-prefix=CHECK
-
-; RUN: llc -mtriple armv7-unknown-linux-gnueabi \
-; RUN:     -arm-enable-ehabi -arm-enable-ehabi-descriptors \
-; RUN:     -filetype=obj -o - %s \
-; RUN:   | llvm-objdump -s - \
-; RUN:   | FileCheck %s --check-prefix=CHECK-FP-ELIM
-
-define void @_Z4testiiiiiddddd(i32 %u1, i32 %u2, i32 %u3, i32 %u4, i32 %u5, double %v1, double %v2, double %v3, double %v4, double %v5) section ".test_section" {
-entry:
-  invoke void @_Z5printiiiii(i32 %u1, i32 %u2, i32 %u3, i32 %u4, i32 %u5)
-          to label %try.cont unwind label %lpad
-
-lpad:                                             ; preds = %entry
-  %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
-          catch i8* null
-  %1 = extractvalue { i8*, i32 } %0, 0
-  %2 = tail call i8* @__cxa_begin_catch(i8* %1) nounwind
-  invoke void @_Z5printddddd(double %v1, double %v2, double %v3, double %v4, double %v5)
-          to label %invoke.cont2 unwind label %lpad1
-
-invoke.cont2:                                     ; preds = %lpad
-  tail call void @__cxa_end_catch()
-  br label %try.cont
-
-try.cont:                                         ; preds = %entry, %invoke.cont2
-  ret void
-
-lpad1:                                            ; preds = %lpad
-  %3 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
-          cleanup
-  invoke void @__cxa_end_catch()
-          to label %eh.resume unwind label %terminate.lpad
-
-eh.resume:                                        ; preds = %lpad1
-  resume { i8*, i32 } %3
-
-terminate.lpad:                                   ; preds = %lpad1
-  %4 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
-          catch i8* null
-  tail call void @_ZSt9terminatev() noreturn nounwind
-  unreachable
-}
-
-declare void @_Z5printiiiii(i32, i32, i32, i32, i32)
-
-declare i32 @__gxx_personality_v0(...)
-
-declare i8* @__cxa_begin_catch(i8*)
-
-declare void @_Z5printddddd(double, double, double, double, double)
-
-declare void @__cxa_end_catch()
-
-declare void @_ZSt9terminatev()
-
-; CHECK: section .test_section
-; CHECK: section .ARM.extab.test_section
-; CHECK-NEXT: 0000 00000000 c94a9b01 b0818484
-; CHECK: section .ARM.exidx.test_section
-; CHECK-NEXT: 0000 00000000 00000000
-
-; CHECK-FP-ELIM: section .test_section
-; CHECK-FP-ELIM: section .ARM.extab.test_section
-; CHECK-FP-ELIM-NEXT: 0000 00000000 84c90501 b0b0b0a8
-; CHECK-FP-ELIM: section .ARM.exidx.test_section
-; CHECK-FP-ELIM-NEXT: 0000 00000000 00000000
diff --git a/test/CodeGen/ARM/ehabi-mc-sh_link.ll b/test/CodeGen/ARM/ehabi-mc-sh_link.ll
deleted file mode 100644
index ac0a0fc930..0000000000
--- a/test/CodeGen/ARM/ehabi-mc-sh_link.ll
+++ /dev/null
@@ -1,58 +0,0 @@
-; Test the sh_link in Elf32_Shdr.
-
-; The .ARM.exidx section should be linked with corresponding text section.
-; The sh_link in Elf32_Shdr should be filled with the section index of
-; the text section.
-
-; RUN: llc -mtriple arm-unknown-linux-gnueabi \
-; RUN:     -arm-enable-ehabi -arm-enable-ehabi-descriptors \
-; RUN:     -filetype=obj -o - %s \
-; RUN:   | llvm-readobj -s \
-; RUN:   | FileCheck %s
-
-define void @test1() nounwind {
-entry:
-  ret void
-}
-
-define void @test2() nounwind section ".test_section" {
-entry:
-  ret void
-}
-
-; CHECK:      Sections [
-; CHECK:        Section {
-; CHECK:          Index: 1
-; CHECK-NEXT:     Name: .text (16)
-
-; CHECK:        Section {
-; CHECK:          Name: .ARM.exidx (5)
-; CHECK-NEXT:     Type: SHT_ARM_EXIDX
-; CHECK-NEXT:     Flags [ (0x82)
-; CHECK-NEXT:       SHF_ALLOC
-; CHECK-NEXT:       SHF_LINK_ORDER
-; CHECK-NEXT:     ]
-; CHECK-NEXT:     Address: 0x0
-; CHECK-NEXT:     Offset: 0x5C
-; CHECK-NEXT:     Size: 8
-; CHECK-NEXT:     Link: 1
-; CHECK-NEXT:     Info: 0
-; CHECK-NEXT:     AddressAlignment: 4
-
-; CHECK:        Section {
-; CHECK:          Index: 7
-; CHECK-NEXT:     Name: .test_section (57)
-
-; CHECK:        Section {
-; CHECK:          Name: .ARM.exidx.test_section (47)
-; CHECK-NEXT:     Type: SHT_ARM_EXIDX
-; CHECK-NEXT:     Flags [ (0x82)
-; CHECK-NEXT:       SHF_ALLOC
-; CHECK-NEXT:       SHF_LINK_ORDER
-; CHECK-NEXT:     ]
-; CHECK-NEXT:     Address: 0x0
-; CHECK-NEXT:     Offset: 0x68
-; CHECK-NEXT:     Size: 8
-; CHECK-NEXT:     Link: 7
-; CHECK-NEXT:     Info: 0
-; CHECK-NEXT:     AddressAlignment: 4
diff --git a/test/CodeGen/ARM/ehabi-mc.ll b/test/CodeGen/ARM/ehabi-mc.ll
deleted file mode 100644
index b0fc81e5f9..0000000000
--- a/test/CodeGen/ARM/ehabi-mc.ll
+++ /dev/null
@@ -1,71 +0,0 @@
-; RUN: llc -mtriple armv7-unknown-linux-gnueabi \
-; RUN:     -arm-enable-ehabi -arm-enable-ehabi-descriptors \
-; RUN:     -disable-fp-elim -filetype=obj -o - %s \
-; RUN:   | llvm-objdump -s - \
-; RUN:   | FileCheck %s --check-prefix=CHECK
-
-; RUN: llc -mtriple armv7-unknown-linux-gnueabi \
-; RUN:     -arm-enable-ehabi -arm-enable-ehabi-descriptors \
-; RUN:     -filetype=obj -o - %s \
-; RUN:   | llvm-objdump -s - \
-; RUN:   | FileCheck %s --check-prefix=CHECK-FP-ELIM
-
-define void @_Z4testiiiiiddddd(i32 %u1, i32 %u2, i32 %u3, i32 %u4, i32 %u5, double %v1, double %v2, double %v3, double %v4, double %v5) {
-entry:
-  invoke void @_Z5printiiiii(i32 %u1, i32 %u2, i32 %u3, i32 %u4, i32 %u5)
-          to label %try.cont unwind label %lpad
-
-lpad:                                             ; preds = %entry
-  %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
-          catch i8* null
-  %1 = extractvalue { i8*, i32 } %0, 0
-  %2 = tail call i8* @__cxa_begin_catch(i8* %1) nounwind
-  invoke void @_Z5printddddd(double %v1, double %v2, double %v3, double %v4, double %v5)
-          to label %invoke.cont2 unwind label %lpad1
-
-invoke.cont2:                                     ; preds = %lpad
-  tail call void @__cxa_end_catch()
-  br label %try.cont
-
-try.cont:                                         ; preds = %entry, %invoke.cont2
-  ret void
-
-lpad1:                                            ; preds = %lpad
-  %3 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
-          cleanup
-  invoke void @__cxa_end_catch()
-          to label %eh.resume unwind label %terminate.lpad
-
-eh.resume:                                        ; preds = %lpad1
-  resume { i8*, i32 } %3
-
-terminate.lpad:                                   ; preds = %lpad1
-  %4 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
-          catch i8* null
-  tail call void @_ZSt9terminatev() noreturn nounwind
-  unreachable
-}
-
-declare void @_Z5printiiiii(i32, i32, i32, i32, i32)
-
-declare i32 @__gxx_personality_v0(...)
-
-declare i8* @__cxa_begin_catch(i8*)
-
-declare void @_Z5printddddd(double, double, double, double, double)
-
-declare void @__cxa_end_catch()
-
-declare void @_ZSt9terminatev()
-
-; CHECK: section .text
-; CHECK: section .ARM.extab
-; CHECK-NEXT: 0000 00000000 c94a9b01 b0818484
-; CHECK: section .ARM.exidx
-; CHECK-NEXT: 0000 00000000 00000000
-
-; CHECK-FP-ELIM: section .text
-; CHECK-FP-ELIM: section .ARM.extab
-; CHECK-FP-ELIM-NEXT: 0000 00000000 84c90501 b0b0b0a8
-; CHECK-FP-ELIM: section .ARM.exidx
-; CHECK-FP-ELIM-NEXT: 0000 00000000 00000000
diff --git a/test/CodeGen/ARM/ehabi.ll b/test/CodeGen/ARM/ehabi.ll
new file mode 100644
index 0000000000..b05d4beee8
--- /dev/null
+++ b/test/CodeGen/ARM/ehabi.ll
@@ -0,0 +1,298 @@
+; ARM EHABI integrated test
+
+; This test case checks whether the ARM unwind directives are properly
+; generated or not.
+
+; The purpose of the test:
+; (1) .fnstart and .fnend directives should wrap the function.
+; (2) .setfp directive should be available if frame pointer is not eliminated.
+; (3) .save directive should come with push instruction.
+; (4) .vsave directive should come with vpush instruction.
+; (5) .pad directive should come with stack pointer adjustment.
+; (6) .cantunwind directive should be available if the function is marked with
+;     nounwind function attribute.
+
+; We have to check several cases:
+; (1) arm with -disable-fp-elim
+; (2) arm without -disable-fp-elim
+; (3) armv7 with -disable-fp-elim
+; (4) armv7 without -disable-fp-elim
+
+; RUN: llc -mtriple arm-unknown-linux-gnueabi \
+; RUN:     -arm-enable-ehabi -arm-enable-ehabi-descriptors \
+; RUN:     -disable-fp-elim -filetype=asm -o - %s \
+; RUN:   | FileCheck %s --check-prefix=CHECK-FP
+
+; RUN: llc -mtriple arm-unknown-linux-gnueabi \
+; RUN:     -arm-enable-ehabi -arm-enable-ehabi-descriptors \
+; RUN:     -filetype=asm -o - %s \
+; RUN:   | FileCheck %s --check-prefix=CHECK-FP-ELIM
+
+; RUN: llc -mtriple armv7-unknown-linux-gnueabi \
+; RUN:     -arm-enable-ehabi -arm-enable-ehabi-descriptors \
+; RUN:     -disable-fp-elim -filetype=asm -o - %s \
+; RUN:   | FileCheck %s --check-prefix=CHECK-V7-FP
+
+; RUN: llc -mtriple armv7-unknown-linux-gnueabi \
+; RUN:     -arm-enable-ehabi -arm-enable-ehabi-descriptors \
+; RUN:     -filetype=asm -o - %s \
+; RUN:   | FileCheck %s --check-prefix=CHECK-V7-FP-ELIM
+
+;-------------------------------------------------------------------------------
+; Test 1
+;-------------------------------------------------------------------------------
+; This is the LLVM assembly generated from following C++ code:
+;
+;   extern void print(int, int, int, int, int);
+;   extern void print(double, double, double, double, double);
+;
+;   void test(int a, int b, int c, int d, int e,
+;             double m, double n, double p, double q, double r) {
+;     try {
+;       print(a, b, c, d, e);
+;     } catch (...) {
+;       print(m, n, p, q, r);
+;     }
+;   }
+
+declare void @_Z5printiiiii(i32, i32, i32, i32, i32)
+
+declare void @_Z5printddddd(double, double, double, double, double)
+
+define void @_Z4testiiiiiddddd(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e,
+                               double %m, double %n, double %p,
+                               double %q, double %r) {
+entry:
+  invoke void @_Z5printiiiii(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e)
+          to label %try.cont unwind label %lpad
+
+lpad:
+  %0 = landingpad { i8*, i32 }
+          personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+          catch i8* null
+  %1 = extractvalue { i8*, i32 } %0, 0
+  %2 = tail call i8* @__cxa_begin_catch(i8* %1)
+  invoke void @_Z5printddddd(double %m, double %n, double %p,
+                             double %q, double %r)
+          to label %invoke.cont2 unwind label %lpad1
+
+invoke.cont2:
+  tail call void @__cxa_end_catch()
+  br label %try.cont
+
+try.cont:
+  ret void
+
+lpad1:
+  %3 = landingpad { i8*, i32 }
+          personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+          cleanup
+  invoke void @__cxa_end_catch()
+          to label %eh.resume unwind label %terminate.lpad
+
+eh.resume:
+  resume { i8*, i32 } %3
+
+terminate.lpad:
+  %4 = landingpad { i8*, i32 }
+          personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+          catch i8* null
+  %5 = extractvalue { i8*, i32 } %4, 0
+  tail call void @__clang_call_terminate(i8* %5)
+  unreachable
+}
+
+declare void @__clang_call_terminate(i8*)
+
+declare i32 @__gxx_personality_v0(...)
+
+declare i8* @__cxa_begin_catch(i8*)
+
+declare void @__cxa_end_catch()
+
+declare void @_ZSt9terminatev()
+
+; CHECK-FP: _Z4testiiiiiddddd:
+; CHECK-FP:   .fnstart
+; CHECK-FP:   .save  {r4, r5, r6, r7, r8, r9, r10, r11, lr}
+; CHECK-FP:   push   {r4, r5, r6, r7, r8, r9, r10, r11, lr}
+; CHECK-FP:   .setfp r11, sp, #28
+; CHECK-FP:   add    r11, sp, #28
+; CHECK-FP:   .pad   #28
+; CHECK-FP:   sub    sp, sp, #28
+; CHECK-FP:   .personality __gxx_personality_v0
+; CHECK-FP:   .handlerdata
+; CHECK-FP:   .fnend
+
+; CHECK-FP-ELIM: _Z4testiiiiiddddd:
+; CHECK-FP-ELIM:   .fnstart
+; CHECK-FP-ELIM:   .save {r4, r5, r6, r7, r8, r9, r10, r11, lr}
+; CHECK-FP-ELIM:   push  {r4, r5, r6, r7, r8, r9, r10, r11, lr}
+; CHECK-FP-ELIM:   .pad  #28
+; CHECK-FP-ELIM:   sub   sp, sp, #28
+; CHECK-FP-ELIM:   .personality __gxx_personality_v0
+; CHECK-FP-ELIM:   .handlerdata
+; CHECK-FP-ELIM:   .fnend
+
+; CHECK-V7-FP: _Z4testiiiiiddddd:
+; CHECK-V7-FP:   .fnstart
+; CHECK-V7-FP:   .save  {r4, r11, lr}
+; CHECK-V7-FP:   push   {r4, r11, lr}
+; CHECK-V7-FP:   .setfp r11, sp, #4
+; CHECK-V7-FP:   add    r11, sp, #4
+; CHECK-V7-FP:   .vsave {d8, d9, d10, d11, d12}
+; CHECK-V7-FP:   vpush  {d8, d9, d10, d11, d12}
+; CHECK-V7-FP:   .pad   #28
+; CHECK-V7-FP:   sub    sp, sp, #28
+; CHECK-V7-FP:   .personality __gxx_personality_v0
+; CHECK-V7-FP:   .handlerdata
+; CHECK-V7-FP:   .fnend
+
+; CHECK-V7-FP-ELIM: _Z4testiiiiiddddd:
+; CHECK-V7-FP-ELIM:   .fnstart
+; CHECK-V7-FP-ELIM:   .save  {r4, lr}
+; CHECK-V7-FP-ELIM:   push   {r4, lr}
+; CHECK-V7-FP-ELIM:   .vsave {d8, d9, d10, d11, d12}
+; CHECK-V7-FP-ELIM:   vpush  {d8, d9, d10, d11, d12}
+; CHECK-V7-FP-ELIM:   .pad   #24
+; CHECK-V7-FP-ELIM:   sub    sp, sp, #24
+; CHECK-V7-FP-ELIM:   .personality __gxx_personality_v0
+; CHECK-V7-FP-ELIM:   .handlerdata
+; CHECK-V7-FP-ELIM:   .fnend
+
+
+;-------------------------------------------------------------------------------
+; Test 2
+;-------------------------------------------------------------------------------
+
+declare void @throw_exception_2()
+
+define void @test2() {
+entry:
+  tail call void @throw_exception_2()
+  ret void
+}
+
+; CHECK-FP: test2:
+; CHECK-FP:   .fnstart
+; CHECK-FP:   .save  {r11, lr}
+; CHECK-FP:   push   {r11, lr}
+; CHECK-FP:   .setfp r11, sp
+; CHECK-FP:   mov    r11, sp
+; CHECK-FP:   pop    {r11, lr}
+; CHECK-FP:   mov    pc, lr
+; CHECK-FP:   .fnend
+
+; CHECK-FP-ELIM: test2:
+; CHECK-FP-ELIM:   .fnstart
+; CHECK-FP-ELIM:   .save {r11, lr}
+; CHECK-FP-ELIM:   push  {r11, lr}
+; CHECK-FP-ELIM:   pop   {r11, lr}
+; CHECK-FP-ELIM:   mov   pc, lr
+; CHECK-FP-ELIM:   .fnend
+
+; CHECK-V7-FP: test2:
+; CHECK-V7-FP:   .fnstart
+; CHECK-V7-FP:   .save  {r11, lr}
+; CHECK-V7-FP:   push   {r11, lr}
+; CHECK-V7-FP:   .setfp r11, sp
+; CHECK-V7-FP:   mov    r11, sp
+; CHECK-V7-FP:   pop    {r11, pc}
+; CHECK-V7-FP:   .fnend
+
+; CHECK-V7-FP-ELIM: test2:
+; CHECK-V7-FP-ELIM:   .fnstart
+; CHECK-V7-FP-ELIM:   .save {r11, lr}
+; CHECK-V7-FP-ELIM:   push  {r11, lr}
+; CHECK-V7-FP-ELIM:   pop   {r11, pc}
+; CHECK-V7-FP-ELIM:   .fnend
+
+
+;-------------------------------------------------------------------------------
+; Test 3
+;-------------------------------------------------------------------------------
+
+declare void @throw_exception_3(i32)
+
+define i32 @test3(i32 %a, i32 %b, i32 %c, i32 %d,
+                  i32 %e, i32 %f, i32 %g, i32 %h) {
+entry:
+  %add = add nsw i32 %b, %a
+  %add1 = add nsw i32 %add, %c
+  %add2 = add nsw i32 %add1, %d
+  tail call void @throw_exception_3(i32 %add2)
+  %add3 = add nsw i32 %f, %e
+  %add4 = add nsw i32 %add3, %g
+  %add5 = add nsw i32 %add4, %h
+  tail call void @throw_exception_3(i32 %add5)
+  %add6 = add nsw i32 %add5, %add2
+  ret i32 %add6
+}
+
+; CHECK-FP: test3:
+; CHECK-FP:   .fnstart
+; CHECK-FP:   .save  {r4, r5, r11, lr}
+; CHECK-FP:   push   {r4, r5, r11, lr}
+; CHECK-FP:   .setfp r11, sp, #8
+; CHECK-FP:   add    r11, sp, #8
+; CHECK-FP:   pop    {r4, r5, r11, lr}
+; CHECK-FP:   mov    pc, lr
+; CHECK-FP:   .fnend
+
+; CHECK-FP-ELIM: test3:
+; CHECK-FP-ELIM:   .fnstart
+; CHECK-FP-ELIM:   .save {r4, r5, r11, lr}
+; CHECK-FP-ELIM:   push  {r4, r5, r11, lr}
+; CHECK-FP-ELIM:   pop   {r4, r5, r11, lr}
+; CHECK-FP-ELIM:   mov   pc, lr
+; CHECK-FP-ELIM:   .fnend
+
+; CHECK-V7-FP: test3:
+; CHECK-V7-FP:   .fnstart
+; CHECK-V7-FP:   .save  {r4, r5, r11, lr}
+; CHECK-V7-FP:   push   {r4, r5, r11, lr}
+; CHECK-V7-FP:   .setfp r11, sp, #8
+; CHECK-V7-FP:   add    r11, sp, #8
+; CHECK-V7-FP:   pop    {r4, r5, r11, pc}
+; CHECK-V7-FP:   .fnend
+
+; CHECK-V7-FP-ELIM: test3:
+; CHECK-V7-FP-ELIM:   .fnstart
+; CHECK-V7-FP-ELIM:   .save {r4, r5, r11, lr}
+; CHECK-V7-FP-ELIM:   push  {r4, r5, r11, lr}
+; CHECK-V7-FP-ELIM:   pop   {r4, r5, r11, pc}
+; CHECK-V7-FP-ELIM:   .fnend
+
+
+;-------------------------------------------------------------------------------
+; Test 4
+;-------------------------------------------------------------------------------
+
+define void @test4() nounwind {
+entry:
+  ret void
+}
+
+; CHECK-FP: test4:
+; CHECK-FP:   .fnstart
+; CHECK-FP:   mov pc, lr
+; CHECK-FP:   .cantunwind
+; CHECK-FP:   .fnend
+
+; CHECK-FP-ELIM: test4:
+; CHECK-FP-ELIM:   .fnstart
+; CHECK-FP-ELIM:   mov pc, lr
+; CHECK-FP-ELIM:   .cantunwind
+; CHECK-FP-ELIM:   .fnend
+
+; CHECK-V7-FP: test4:
+; CHECK-V7-FP:   .fnstart
+; CHECK-V7-FP:   bx lr
+; CHECK-V7-FP:   .cantunwind
+; CHECK-V7-FP:   .fnend
+
+; CHECK-V7-FP-ELIM: test4:
+; CHECK-V7-FP-ELIM:   .fnstart
+; CHECK-V7-FP-ELIM:   bx lr
+; CHECK-V7-FP-ELIM:   .cantunwind
+; CHECK-V7-FP-ELIM:   .fnend
diff --git a/test/CodeGen/ARM/section-name.ll b/test/CodeGen/ARM/section-name.ll
new file mode 100644
index 0000000000..a0aad4733b
--- /dev/null
+++ b/test/CodeGen/ARM/section-name.ll
@@ -0,0 +1,25 @@
+; RUN: llc < %s -mtriple=arm-unknown-linux-gnueabi | FileCheck %s
+
+; CHECK: .text
+; CHECK: .globl test1
+; CHECK: .type test1,%function
+define void @test1() {
+entry:
+  ret void
+}
+
+; CHECK: .section .test2,"ax",%progbits
+; CHECK: .globl test2
+; CHECK: .type test2,%function
+define void @test2() section ".test2" {
+entry:
+  ret void
+}
+
+; CHECK: .section .text.test3,"axG",%progbits,test3,comdat
+; CHECK: .weak test3
+; CHECK: .type test3,%function
+define linkonce_odr void @test3() {
+entry:
+  ret void
+}