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https://github.com/RPCS3/llvm-mirror.git
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583f921888
This commit serializes the implicit flag for the register machine operands. It introduces two new keywords into the machine instruction syntax: 'implicit' and 'implicit-def'. The 'implicit' keyword is used for the implicit register operands, and the 'implicit-def' keyword is used for the register operands that have both the implicit and the define flags set. Reviewers: Duncan P. N. Exon Smith Differential Revision: http://reviews.llvm.org/D10709 llvm-svn: 241519
42 lines
984 B
YAML
42 lines
984 B
YAML
# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s | FileCheck %s
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# This test ensures that the MIR parser parses the 'implicit' and 'implicit-def'
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# register flags correctly.
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--- |
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define i32 @foo(i32 %a) {
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entry:
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%0 = icmp sle i32 %a, 10
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br i1 %0, label %less, label %exit
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less:
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ret i32 0
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exit:
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ret i32 %a
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}
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...
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---
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name: foo
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body:
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- id: 0
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name: entry
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instructions:
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# CHECK: - 'CMP32ri8 %edi, 10, implicit-def %eflags'
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# CHECK-NEXT: - 'JG_1 %bb.2.exit, implicit %eflags'
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- 'CMP32ri8 %edi, 10, implicit-def %eflags'
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- 'JG_1 %bb.2.exit, implicit %eflags'
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- id: 1
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name: less
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instructions:
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# CHECK: - '%eax = MOV32r0 implicit-def %eflags'
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- '%eax = MOV32r0 implicit-def %eflags'
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- 'RETQ %eax'
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- id: 2
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name: exit
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instructions:
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- '%eax = COPY %edi'
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- 'RETQ %eax'
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...
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