select-GV-32.mir
3.01 KB
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# RUN: llc -mtriple=i386-linux-gnu -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=X32ALL --check-prefix=X32
# RUN: llc -mtriple=x86_64-linux-gnux32 -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=X32ALL --check-prefix=X32ABI
--- |
@g_int = global i32 0, align 4
define void @test_global_ptrv() {
entry:
store i32* @g_int, i32** undef
ret void
}
define i32 @test_global_valv() {
entry:
%0 = load i32, i32* @g_int, align 4
ret i32 %0
}
...
---
name: test_global_ptrv
# CHECK-LABEL: name: test_global_ptrv
alignment: 16
legalized: true
regBankSelected: true
# X32: registers:
# X32-NEXT: - { id: 0, class: gr32, preferred-register: '' }
# X32-NEXT: - { id: 1, class: gr32, preferred-register: '' }
#
# X32ABI: registers:
# X32ABI-NEXT: - { id: 0, class: low32_addr_access, preferred-register: '' }
# X32ABI-NEXT: - { id: 1, class: gr32, preferred-register: '' }
registers:
- { id: 0, class: gpr, preferred-register: '' }
- { id: 1, class: gpr, preferred-register: '' }
# X32: %0:gr32 = IMPLICIT_DEF
# X32-NEXT: %1:gr32 = LEA32r $noreg, 1, $noreg, @g_int, $noreg
# X32-NEXT: MOV32mr %0, 1, $noreg, 0, $noreg, %1 :: (store 4 into `i32** undef`)
# X32-NEXT: RET 0
#
# X32ABI: %0:low32_addr_access = IMPLICIT_DEF
# X32ABI-NEXT: %1:gr32 = LEA64_32r $noreg, 1, $noreg, @g_int, $noreg
# X32ABI-NEXT: MOV32mr %0, 1, $noreg, 0, $noreg, %1 :: (store 4 into `i32** undef`)
# X32ABI-NEXT: RET 0
body: |
bb.1.entry:
liveins: $rdi
%0(p0) = IMPLICIT_DEF
%1(p0) = G_GLOBAL_VALUE @g_int
G_STORE %1(p0), %0(p0) :: (store 4 into `i32** undef`)
RET 0
...
---
name: test_global_valv
# CHECK-LABEL: name: test_global_valv
alignment: 16
legalized: true
regBankSelected: true
# X32ALL: registers:
# X32ALL-NEXT: - { id: 0, class: gr32, preferred-register: '' }
# X32ALL-NEXT: - { id: 1, class: gr32, preferred-register: '' }
registers:
- { id: 0, class: gpr, preferred-register: '' }
- { id: 1, class: gpr, preferred-register: '' }
# X32: %1:gr32 = LEA32r $noreg, 1, $noreg, @g_int, $noreg
# X32-NEXT: %0:gr32 = MOV32rm %1, 1, $noreg, 0, $noreg :: (load 4 from @g_int)
# X32-NEXT: $eax = COPY %0
# X32-NEXT: RET 0, implicit $eax
#
# X32ABI: %1:gr32 = LEA64_32r $noreg, 1, $noreg, @g_int, $noreg
# X32ABI-NEXT: %0:gr32 = MOV32rm %1, 1, $noreg, 0, $noreg :: (load 4 from @g_int)
# X32ABI-NEXT: $eax = COPY %0
# X32ABI-NEXT: RET 0, implicit $eax
body: |
bb.1.entry:
%1(p0) = G_GLOBAL_VALUE @g_int
%0(s32) = G_LOAD %1(p0) :: (load 4 from @g_int)
$eax = COPY %0(s32)
RET 0, implicit $eax
...