llvm-project/llvm/test/CodeGen/X86/GlobalISel/select-constant.mir

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# RUN: llc -mtriple=x86_64-linux-gnu -global-isel -run-pass=instruction-select %s -o - | FileCheck %s --check-prefix=CHECK
--- |
define i8 @const_i8() {
ret i8 2
}
define i16 @const_i16() {
ret i16 3
}
define i32 @const_i32() {
ret i32 4
}
define i64 @const_i64() {
ret i64 68719476720
}
define i64 @const_i64_u32() {
ret i64 1879048192
}
define i64 @const_i64_i32() {
ret i64 -1
}
...
---
name: const_i8
legalized: true
regBankSelected: true
selected: false
# CHECK-LABEL: name: const_i8
# CHECK: registers:
# CHECK-NEXT: - { id: 0, class: gr8 }
registers:
- { id: 0, class: gpr }
# CHECK: body:
# CHECK: %0 = MOV8ri 2
body: |
bb.1 (%ir-block.0):
%0(s8) = G_CONSTANT i8 2
%al = COPY %0(s8)
RET 0, implicit %al
...
---
name: const_i16
legalized: true
regBankSelected: true
selected: false
# CHECK-LABEL: name: const_i16
# CHECK: registers:
# CHECK-NEXT: - { id: 0, class: gr16 }
registers:
- { id: 0, class: gpr }
# CHECK: body:
# CHECK: %0 = MOV16ri 3
body: |
bb.1 (%ir-block.0):
%0(s16) = G_CONSTANT i16 3
%ax = COPY %0(s16)
RET 0, implicit %ax
...
---
name: const_i32
legalized: true
regBankSelected: true
selected: false
# CHECK-LABEL: name: const_i32
# CHECK: registers:
# CHECK-NEXT: - { id: 0, class: gr32 }
registers:
- { id: 0, class: gpr }
# CHECK: body:
# CHECK: %0 = MOV32ri 4
body: |
bb.1 (%ir-block.0):
%0(s32) = G_CONSTANT i32 4
%eax = COPY %0(s32)
RET 0, implicit %eax
...
---
name: const_i64
legalized: true
regBankSelected: true
selected: false
# CHECK-LABEL: name: const_i64
# CHECK: registers:
# CHECK-NEXT: - { id: 0, class: gr64 }
registers:
- { id: 0, class: gpr }
# CHECK: body:
# CHECK: %0 = MOV64ri 68719476720
body: |
bb.1 (%ir-block.0):
%0(s64) = G_CONSTANT i64 68719476720
%rax = COPY %0(s64)
RET 0, implicit %rax
...
---
name: const_i64_u32
alignment: 4
legalized: true
regBankSelected: true
selected: false
# CHECK-LABEL: name: const_i64_u32
# CHECK: registers:
# CHECK-NEXT: - { id: 0, class: gr64 }
registers:
- { id: 0, class: gpr }
# CHECK: body:
# CHECK: %0 = MOV64ri32 1879048192
body: |
bb.1 (%ir-block.0):
%0(s64) = G_CONSTANT i64 1879048192
%rax = COPY %0(s64)
RET 0, implicit %rax
...
---
name: const_i64_i32
legalized: true
regBankSelected: true
selected: false
# CHECK-LABEL: name: const_i64_i32
# CHECK: registers:
# CHECK-NEXT: - { id: 0, class: gr64 }
registers:
- { id: 0, class: gpr }
# CHECK: body:
# CHECK: %0 = MOV64ri32 -1
body: |
bb.1 (%ir-block.0):
%0(s64) = G_CONSTANT i64 -1
%rax = COPY %0(s64)
RET 0, implicit %rax
...