llvm-project/llvm/test/CodeGen/MIR/X86/constant-pool-item-redefini...

# RUN: not llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s

--- |

  define double @test(double %a, float %b) {
  entry:
    %c = fadd double %a, 3.250000e+00
    ret double %c
  }

...
---
name:            test
constants:
  - id:          0
    value:       'double 3.250000e+00'
# CHECK: [[@LINE+1]]:18: redefinition of constant pool item '%const.0'
  - id:          0
    value:       'double 3.250000e+00'
body: |
  bb.0.entry:
    %xmm0 = ADDSDrm killed %xmm0, %rip, 1, _, %const.0, _
    RETQ %xmm0
...
MIR Parser: Report an error when a constant pool item is redefined. llvm-svn: 243696 2015-07-31 06:00:17 +08:00			`# RUN: not llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 \| FileCheck %s`

			`--- \|`

			`define double @test(double %a, float %b) {`
			`entry:`
			`%c = fadd double %a, 3.250000e+00`
			`ret double %c`
			`}`

			`...`
			`---`
			`name: test`
			`constants:`
			`- id: 0`
			`value: 'double 3.250000e+00'`
			`# CHECK: [[@LINE+1]]:18: redefinition of constant pool item '%const.0'`
			`- id: 0`
			`value: 'double 3.250000e+00'`
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:`
			`%xmm0 = ADDSDrm killed %xmm0, %rip, 1, _, %const.0, _`
			`RETQ %xmm0`
MIR Parser: Report an error when a constant pool item is redefined. llvm-svn: 243696 2015-07-31 06:00:17 +08:00			`...`