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llvm-mirror/test/CodeGen/MIR/X86/virtual-registers.mir
Matthias Braun 7b825391db MIRParser/MIRPrinter: Compute isSSA instead of printing/parsing it.
Specifying isSSA is an extra line at best and results in invalid MI at
worst. Compute the value instead.

Differential Revision: http://reviews.llvm.org/D22722

llvm-svn: 279600
2016-08-24 01:32:41 +00:00

100 lines
2.0 KiB
YAML

# RUN: llc -march=x86-64 -run-pass none -o - %s | FileCheck %s
# This test ensures that the MIR parser parses virtual register definitions and
# references correctly.
--- |
define i32 @bar(i32 %a) {
entry:
%0 = icmp sle i32 %a, 10
br i1 %0, label %less, label %exit
less:
ret i32 0
exit:
ret i32 %a
}
define i32 @foo(i32 %a) {
entry:
%0 = icmp sle i32 %a, 10
br i1 %0, label %less, label %exit
less:
ret i32 0
exit:
ret i32 %a
}
...
---
name: bar
tracksRegLiveness: true
# CHECK: registers:
# CHECK-NEXT: - { id: 0, class: gr32 }
# CHECK-NEXT: - { id: 1, class: gr32 }
# CHECK-NEXT: - { id: 2, class: gr32 }
registers:
- { id: 0, class: gr32 }
- { id: 1, class: gr32 }
- { id: 2, class: gr32 }
body: |
bb.0.entry:
successors: %bb.2.exit, %bb.1.less
liveins: %edi
; CHECK: %0 = COPY %edi
; CHECK-NEXT: %1 = SUB32ri8 %0, 10
%0 = COPY %edi
%1 = SUB32ri8 %0, 10, implicit-def %eflags
JG_1 %bb.2.exit, implicit %eflags
JMP_1 %bb.1.less
bb.1.less:
; CHECK: %2 = MOV32r0
; CHECK-NEXT: %eax = COPY %2
%2 = MOV32r0 implicit-def %eflags
%eax = COPY %2
RETQ %eax
bb.2.exit:
%eax = COPY %0
RETQ %eax
...
---
name: foo
tracksRegLiveness: true
# CHECK: name: foo
# CHECK: registers:
# CHECK-NEXT: - { id: 0, class: gr32 }
# CHECK-NEXT: - { id: 1, class: gr32 }
# CHECK-NEXT: - { id: 2, class: gr32 }
registers:
- { id: 2, class: gr32 }
- { id: 0, class: gr32 }
- { id: 10, class: gr32 }
body: |
bb.0.entry:
successors: %bb.2.exit, %bb.1.less
liveins: %edi
; CHECK: %0 = COPY %edi
; CHECK-NEXT: %1 = SUB32ri8 %0, 10
%2 = COPY %edi
%0 = SUB32ri8 %2, 10, implicit-def %eflags
JG_1 %bb.2.exit, implicit %eflags
JMP_1 %bb.1.less
bb.1.less:
; CHECK: %2 = MOV32r0
; CHECK-NEXT: %eax = COPY %2
%10 = MOV32r0 implicit-def %eflags
%eax = COPY %10
RETQ %eax
bb.2.exit:
; CHECK: %eax = COPY %0
%eax = COPY %2
RETQ %eax
...