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c21c095194
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
25 lines
555 B
YAML
25 lines
555 B
YAML
# RUN: not llc -march=nvptx -mcpu=sm_20 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
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--- |
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define float @test(float %k) {
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entry:
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%0 = fadd float %k, 3.250000e+00
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ret float %0
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}
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...
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---
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name: test
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registers:
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- { id: 0, class: float32regs }
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- { id: 1, class: float32regs }
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body: |
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bb.0.entry:
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%0 = LD_f32_avar 0, 4, 1, 2, 32, $test_param_0
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; CHECK: [[@LINE+1]]:33: expected a floating point literal
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%1 = FADD_rnf32ri %0, float 3
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StoreRetvalF32 %1, 0
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Return
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...
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