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llvm-project/llvm/test/CodeGen/MIR/X86/stack-objects.mir

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llc: Add support for -run-pass none This does not schedule any passes besides the ones necessary to construct and print the machine function. This is useful to test .mir file reading and printing. Differential Revision: http://reviews.llvm.org/D22432 llvm-svn: 275664
2016-07-16 10:24:59 +08:00
# RUN: llc -march=x86-64 -run-pass none -o - %s | FileCheck %s
MIR Serialization: Initial serialization of stack objects. This commit implements the initial serialization of stack objects from the MachineFrameInfo class. It can only serialize the ordinary stack objects (including ordinary spill slots), but it doesn't serialize variable sized or fixed stack objects yet. The stack objects are serialized using a YAML sequence of YAML inline mappings. Each mapping has the object's ID, type, size, offset and alignment. The stack objects are a part of machine function's YAML mapping. Reviewers: Duncan P. N. Exon Smith llvm-svn: 241922
2015-07-11 02:13:57 +08:00
# This test ensures that the MIR parser parses stack objects correctly.
--- |
define i32 @test(i32 %a) #0 {
entry:
%b = alloca i32
%x = alloca i64
store i32 %a, i32* %b
store i64 2, i64* %x
%c = load i32, i32* %b
ret i32 %c
}
attributes #0 = { "no-frame-pointer-elim"="false" }
...
---
name: test
frameInfo:
maxAlignment: 8
# CHECK: stack:
[Improve CodeGen Testing] This patch renables MIRPrinter print fields which have value equal to its default. If -simplify-mir option is passed then MIRPrinter will not print such fields. This change also required some lit test cases in CodeGen directory to be changed. Reviewed By: MatzeB Differential Revision: https://reviews.llvm.org/D32304 llvm-svn: 304779
2017-06-06 16:16:19 +08:00
# CHECK-NEXT: - { id: 0, name: b, type: default, offset: -12, size: 4, alignment: 4,
MIR: Serialize CaleeSavedInfo Restored flag llvm-svn: 314449
2017-09-29 02:52:14 +08:00
# CHECK-NEXT: stack-id: 0, callee-saved-register: '', callee-saved-restored: true,
# CHECK-NEXT: di-variable: '', di-expression: '', di-location: '' }
[Improve CodeGen Testing] This patch renables MIRPrinter print fields which have value equal to its default. If -simplify-mir option is passed then MIRPrinter will not print such fields. This change also required some lit test cases in CodeGen directory to be changed. Reviewed By: MatzeB Differential Revision: https://reviews.llvm.org/D32304 llvm-svn: 304779
2017-06-06 16:16:19 +08:00
# CHECK-NEXT: - { id: 1, name: x, type: default, offset: -24, size: 8, alignment: 8,
MIR: Serialize CaleeSavedInfo Restored flag llvm-svn: 314449
2017-09-29 02:52:14 +08:00
# CHECK-NEXT: stack-id: 0, callee-saved-register: '', callee-saved-restored: true,
# CHECK-NEXT: di-variable: '', di-expression: '', di-location: '' }
[Improve CodeGen Testing] This patch renables MIRPrinter print fields which have value equal to its default. If -simplify-mir option is passed then MIRPrinter will not print such fields. This change also required some lit test cases in CodeGen directory to be changed. Reviewed By: MatzeB Differential Revision: https://reviews.llvm.org/D32304 llvm-svn: 304779
2017-06-06 16:16:19 +08:00
# CHECK-NEXT: - { id: 2, name: '', type: spill-slot, offset: -32, size: 4, alignment: 4,
MIR: Serialize CaleeSavedInfo Restored flag llvm-svn: 314449
2017-09-29 02:52:14 +08:00
# CHECK-NEXT: stack-id: 0, callee-saved-register: '', callee-saved-restored: true,
# CHECK-NEXT: di-variable: '', di-expression: '', di-location: '' }
MIR Serialization: Initial serialization of stack objects. This commit implements the initial serialization of stack objects from the MachineFrameInfo class. It can only serialize the ordinary stack objects (including ordinary spill slots), but it doesn't serialize variable sized or fixed stack objects yet. The stack objects are serialized using a YAML sequence of YAML inline mappings. Each mapping has the object's ID, type, size, offset and alignment. The stack objects are a part of machine function's YAML mapping. Reviewers: Duncan P. N. Exon Smith llvm-svn: 241922
2015-07-11 02:13:57 +08:00
stack:
MIR Serialization: Serialize references from the stack objects to named allocas. This commit serializes the references to the named LLVM alloca instructions from the stack objects in the machine frame info. This commit adds a field 'Name' to the struct 'yaml::MachineStackObject'. This new field is used to store the name of the alloca instruction when the alloca is present and when it has a name. llvm-svn: 242339
2015-07-16 06:14:49 +08:00
- { id: 0, name: b, offset: -12, size: 4, alignment: 4 }
- { id: 1, name: x, offset: -24, size: 8, alignment: 8 }
MIR Serialization: Initial serialization of stack objects. This commit implements the initial serialization of stack objects from the MachineFrameInfo class. It can only serialize the ordinary stack objects (including ordinary spill slots), but it doesn't serialize variable sized or fixed stack objects yet. The stack objects are serialized using a YAML sequence of YAML inline mappings. Each mapping has the object's ID, type, size, offset and alignment. The stack objects are a part of machine function's YAML mapping. Reviewers: Duncan P. N. Exon Smith llvm-svn: 241922
2015-07-11 02:13:57 +08:00
- { id: 2, type: spill-slot, offset: -32, size: 4, alignment: 4 }
MIR Serialization: Change MIR syntax - use custom syntax for MBBs. This commit modifies the way the machine basic blocks are serialized - now the machine basic blocks are serialized using a custom syntax instead of relying on YAML primitives. Instead of using YAML mappings to represent the individual machine basic blocks in a machine function's body, the new syntax uses a single YAML block scalar which contains all of the machine basic blocks and instructions for that function. This is an example of a function's body that uses the old syntax: body: - id: 0 name: entry instructions: - '%eax = MOV32r0 implicit-def %eflags' - 'RETQ %eax' ... The same body is now written like this: body: | bb.0.entry: %eax = MOV32r0 implicit-def %eflags RETQ %eax ... This syntax change is motivated by the fact that the bundled machine instructions didn't map that well to the old syntax which was using a single YAML sequence to store all of the machine instructions in a block. The bundled machine instructions internally use flags like BundledPred and BundledSucc to determine the bundles, and serializing them as MI flags using the old syntax would have had a negative impact on the readability and the ease of editing for MIR files. The new syntax allows me to serialize the bundled machine instructions using a block construct without relying on the internal flags, for example: BUNDLE implicit-def dead %itstate, implicit-def %s1 ... { t2IT 1, 24, implicit-def %itstate %s1 = VMOVS killed %s0, 1, killed %cpsr, implicit killed %itstate } This commit also converts the MIR testcases to the new syntax. I developed a script that can convert from the old syntax to the new one. I will post the script on the llvm-commits mailing list in the thread for this commit. llvm-svn: 244982
2015-08-14 07:10:16 +08:00
body: |
bb.0.entry:
MOV32mr %rsp, 1, _, -4, _, %edi
MOV64mi32 %rsp, 1, _, -16, _, 2
%eax = MOV32rm %rsp, 1, _, -4, _
RETQ %eax
MIR Serialization: Initial serialization of stack objects. This commit implements the initial serialization of stack objects from the MachineFrameInfo class. It can only serialize the ordinary stack objects (including ordinary spill slots), but it doesn't serialize variable sized or fixed stack objects yet. The stack objects are serialized using a YAML sequence of YAML inline mappings. Each mapping has the object's ID, type, size, offset and alignment. The stack objects are a part of machine function's YAML mapping. Reviewers: Duncan P. N. Exon Smith llvm-svn: 241922
2015-07-11 02:13:57 +08:00
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