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llvm-project/llvm/test/CodeGen/X86/xray-section-group.ll

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[XRay] Make the xray_instr_map section specification more correct Summary: We also add a test to show what currently happens when we create a section per function and emit an xray_instr_map. This illustrates the relationship (or lack thereof) between the per-function section and the xray_instr_map section. We also change the code generation slightly so that we don't always create group sections, but rather only do so if a function where the table is associated with is in a group. Also in this change: - Remove the "merge" flag on the xray_instr_map section. - Test that we're generating the right table for comdat and non-comdat functions. Reviewers: echristo, majnemer Subscribers: llvm-commits, mehdi_amini Differential Revision: https://reviews.llvm.org/D23104 llvm-svn: 277580
2016-08-03 15:21:55 +08:00
; RUN: llc -filetype=asm -o - -mtriple=x86_64-unknown-linux-gnu -function-sections < %s | FileCheck %s
[XRay] Test for xray_instr_map in object file. (NFC) This makes a trivial change in the emission of the per-function XRay tables, and makes sure that the xray_instr_map section does show up in the object file. llvm-svn: 278113
2016-08-09 18:42:11 +08:00
; RUN: llc -filetype=obj -o %t -mtriple=x86_64-unknown-linux-gnu -function-sections < %s
; RUN: llvm-objdump -triple x86_64-unknown-linux-gnu -disassemble-all %t | FileCheck %s --check-prefix=CHECK-OBJ
[XRay] Make the xray_instr_map section specification more correct Summary: We also add a test to show what currently happens when we create a section per function and emit an xray_instr_map. This illustrates the relationship (or lack thereof) between the per-function section and the xray_instr_map section. We also change the code generation slightly so that we don't always create group sections, but rather only do so if a function where the table is associated with is in a group. Also in this change: - Remove the "merge" flag on the xray_instr_map section. - Test that we're generating the right table for comdat and non-comdat functions. Reviewers: echristo, majnemer Subscribers: llvm-commits, mehdi_amini Differential Revision: https://reviews.llvm.org/D23104 llvm-svn: 277580
2016-08-03 15:21:55 +08:00
define i32 @foo() nounwind noinline uwtable "function-instrument"="xray-always" {
; CHECK: .section .text.foo,"ax",@progbits
ret i32 0
; CHECK: .section xray_instr_map,"a",@progbits
}
$bar = comdat any
[XRay] Test for xray_instr_map in object file. (NFC) This makes a trivial change in the emission of the per-function XRay tables, and makes sure that the xray_instr_map section does show up in the object file. llvm-svn: 278113
2016-08-09 18:42:11 +08:00
define i32 @bar() nounwind noinline uwtable "function-instrument"="xray-always" comdat($bar) {
; CHECK: .section .text.bar,"axG",@progbits,bar,comdat
[XRay] Make the xray_instr_map section specification more correct Summary: We also add a test to show what currently happens when we create a section per function and emit an xray_instr_map. This illustrates the relationship (or lack thereof) between the per-function section and the xray_instr_map section. We also change the code generation slightly so that we don't always create group sections, but rather only do so if a function where the table is associated with is in a group. Also in this change: - Remove the "merge" flag on the xray_instr_map section. - Test that we're generating the right table for comdat and non-comdat functions. Reviewers: echristo, majnemer Subscribers: llvm-commits, mehdi_amini Differential Revision: https://reviews.llvm.org/D23104 llvm-svn: 277580
2016-08-03 15:21:55 +08:00
ret i32 1
; CHECK: .section xray_instr_map,"aG",@progbits,bar,comdat
}
[XRay] Test for xray_instr_map in object file. (NFC) This makes a trivial change in the emission of the per-function XRay tables, and makes sure that the xray_instr_map section does show up in the object file. llvm-svn: 278113
2016-08-09 18:42:11 +08:00
; CHECK-OBJ: section xray_instr_map: