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llvm-project/llvm/test/Assembler/return-column.s

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MC: add support for cfi_return_column This adds support for the CFI pseudo-op return_column. This specifies the frame table column which contains the return address. Addresses PR33953! llvm-svn: 309360
2017-07-28 11:39:19 +08:00
// RUN: llvm-mc -triple i686-unknown-linux-gnu -filetype asm -o - %s | FileCheck %s -check-prefix CHECK-ASM-ROUNDTRIP
test: make the test clearer (NFC) Use `llvm-objdump -dwarf=frames` to dump the .eh_frame to validate the output textually rather than compare the binary output. This makes it easier to see what is being checked. NFC. llvm-svn: 309524
2017-07-31 05:30:53 +08:00
// RUN: llvm-mc -triple i686-unknown-linux-gnu -filetype obj -o - %s | llvm-objdump -dwarf=frames - | FileCheck %s -check-prefix CHECK-EH_FRAME
test: require x86 backend Ensure that the target is registered before using it. Should fix the hexagon Bots. llvm-svn: 309363
2017-07-28 12:15:35 +08:00
// REQUIRES: x86-registered-target
MC: add support for cfi_return_column This adds support for the CFI pseudo-op return_column. This specifies the frame table column which contains the return address. Addresses PR33953! llvm-svn: 309360
2017-07-28 11:39:19 +08:00
.text
MC: account for the return column in the CIE key If the return column is different, we cannot coalesce the CIE across the FDEs. Add that to the key calculation. This ensures that we emit a separate CIE. llvm-svn: 309492
2017-07-30 04:03:00 +08:00
.section .text.f,"ax",@progbits
.global f
.type f,@function
f:
MC: add support for cfi_return_column This adds support for the CFI pseudo-op return_column. This specifies the frame table column which contains the return address. Addresses PR33953! llvm-svn: 309360
2017-07-28 11:39:19 +08:00
.cfi_startproc
.cfi_return_column 0
.cfi_endproc
MC: account for the return column in the CIE key If the return column is different, we cannot coalesce the CIE across the FDEs. Add that to the key calculation. This ensures that we emit a separate CIE. llvm-svn: 309492
2017-07-30 04:03:00 +08:00
.section .text.g,"ax",@progbits
.global g
.type g,@function
g:
.cfi_startproc
.cfi_return_column 65
.cfi_endproc
test: add an additional cfi_return_column test Ensure that we still coalesce identical CIEs across FDEs even with cfi_return_column alterations. llvm-svn: 309525
2017-07-31 05:30:54 +08:00
.section .text.h,"ax",@progbits
.global h
.type g,@function
h:
.cfi_startproc
.cfi_return_column 65
.cfi_endproc
MC: account for the return column in the CIE key If the return column is different, we cannot coalesce the CIE across the FDEs. Add that to the key calculation. This ensures that we emit a separate CIE. llvm-svn: 309492
2017-07-30 04:03:00 +08:00
// CHECK-ASM-ROUNDTRIP-LABEL: f:
MC: add support for cfi_return_column This adds support for the CFI pseudo-op return_column. This specifies the frame table column which contains the return address. Addresses PR33953! llvm-svn: 309360
2017-07-28 11:39:19 +08:00
// CHECK-ASM-ROUNDTRIP: .cfi_startproc
// CHECK-ASM-ROUNDTRIP-NEXT: .cfi_return_column 0
// CHECK-ASM-ROUNDTRIP: .cfi_endproc
test: make the test clearer (NFC) Use `llvm-objdump -dwarf=frames` to dump the .eh_frame to validate the output textually rather than compare the binary output. This makes it easier to see what is being checked. NFC. llvm-svn: 309524
2017-07-31 05:30:53 +08:00
// CHECK-EH_FRAME: 00000000 00000014 ffffffff CIE
// CHECK-EH_FRAME: Return address column: 0
// CHECK-EH_FRAME: 0000002c 00000014 ffffffff CIE
// CHECK-EH_FRAME: Return address column: 65
// CHECK-EH_FRAME-NOT: ........ 00000014 ffffffff CIE
MC: add support for cfi_return_column This adds support for the CFI pseudo-op return_column. This specifies the frame table column which contains the return address. Addresses PR33953! llvm-svn: 309360
2017-07-28 11:39:19 +08:00