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|
; RUN: llc -no-integrated-as -verify-machineinstrs -o - %s -mtriple=aarch64-none-linux-gnu -aarch64-enable-atomic-cfg-tidy=0 | FileCheck %s
; RUN: llc -no-integrated-as -code-model=large -verify-machineinstrs -o - %s -mtriple=aarch64-none-linux-gnu -aarch64-enable-atomic-cfg-tidy=0 | FileCheck --check-prefix=CHECK-LARGE %s
; RUN: llc -no-integrated-as -mtriple=aarch64-none-linux-gnu -verify-machineinstrs -relocation-model=pic -aarch64-enable-atomic-cfg-tidy=0 -o - %s | FileCheck --check-prefix=CHECK-PIC %s
; RUN: llc -no-integrated-as -code-model=tiny -verify-machineinstrs -o - %s -mtriple=aarch64-none-linux-gnu -aarch64-enable-atomic-cfg-tidy=0 | FileCheck --check-prefix=CHECK-TINY %s
define i32 @test_jumptable(i32 %in) {
; CHECK: test_jumptable
switch i32 %in, label %def [
i32 0, label %lbl1
i32 1, label %lbl2
i32 2, label %lbl3
i32 4, label %lbl4
]
; CHECK-LABEL: test_jumptable:
; CHECK: adrp [[JTPAGE:x[0-9]+]], .LJTI0_0
; CHECK: add x[[JT:[0-9]+]], [[JTPAGE]], {{#?}}:lo12:.LJTI0_0
; CHECK: adr [[PCBASE:x[0-9]+]], [[JTBASE:.LBB[0-9]+_[0-9]+]]
; CHECK: ldrb w[[OFFSET:[0-9]+]], [x[[JT]], {{x[0-9]+}}]
; CHECK: add [[DEST:x[0-9]+]], [[PCBASE]], x[[OFFSET]], lsl #2
; CHECK: br [[DEST]]
; CHECK-LARGE: movz x[[JTADDR:[0-9]+]], #:abs_g0_nc:.LJTI0_0
; CHECK-LARGE: movk x[[JTADDR]], #:abs_g1_nc:.LJTI0_0
; CHECK-LARGE: movk x[[JTADDR]], #:abs_g2_nc:.LJTI0_0
; CHECK-LARGE: movk x[[JTADDR]], #:abs_g3:.LJTI0_0
; CHECK-LARGE: adr [[PCBASE:x[0-9]+]], [[JTBASE:.LBB[0-9]+_[0-9]+]]
; CHECK-LARGE: ldrb w[[OFFSET:[0-9]+]], [x[[JTADDR]], {{x[0-9]+}}]
; CHECK-LARGE: add [[DEST:x[0-9]+]], [[PCBASE]], x[[OFFSET]], lsl #2
; CHECK-LARGE: br [[DEST]]
; CHECK-PIC-LABEL: test_jumptable:
; CHECK-PIC: adrp [[JTPAGE:x[0-9]+]], .LJTI0_0
; CHECK-PIC: add x[[JT:[0-9]+]], [[JTPAGE]], {{#?}}:lo12:.LJTI0_0
; CHECK-PIC: adr [[PCBASE:x[0-9]+]], [[JTBASE:.LBB[0-9]+_[0-9]+]]
; CHECK-PIC: ldrb w[[OFFSET:[0-9]+]], [x[[JT]], {{x[0-9]+}}]
; CHECK-PIC: add [[DEST:x[0-9]+]], [[PCBASE]], x[[OFFSET]], lsl #2
; CHECK-PIC: br [[DEST]]
; CHECK-IOS: adrp [[JTPAGE:x[0-9]+]], LJTI0_0@PAGE
; CHECK-IOS: add x[[JT:[0-9]+]], [[JTPAGE]], LJTI0_0@PAGEOFF
; CHECK-IOS: adr [[PCBASE:x[0-9]+]], [[JTBASE:LBB[0-9]+_[0-9]+]]
; CHECK-IOS: ldrb w[[OFFSET:[0-9]+]], [x[[JT]], {{x[0-9]+}}]
; CHECK-IOS: add [[DEST:x[0-9]+]], [[PCBASE]], x[[OFFSET]], lsl #2
; CHECK-IOS: br [[DEST]]
; CHECK-TINY-LABEL: test_jumptable:
; CHECK-TINY: adr x[[JT:[0-9]+]], .LJTI0_0
; CHECK-TINY: adr [[PCBASE:x[0-9]+]], [[JTBASE:.LBB[0-9]+_[0-9]+]]
; CHECK-TINY: ldrb w[[OFFSET:[0-9]+]], [x[[JT]], {{x[0-9]+}}]
; CHECK-TINY: add [[DEST:x[0-9]+]], [[PCBASE]], x[[OFFSET]], lsl #2
; CHECK-TINY: br [[DEST]]
def:
ret i32 0
lbl1:
ret i32 1
lbl2:
ret i32 2
lbl3:
ret i32 4
lbl4:
ret i32 8
}
; CHECK: .rodata
; CHECK: .LJTI0_0:
; CHECK-NEXT: .byte ([[JTBASE]]-[[JTBASE]])>>2
; CHECK-NEXT: .byte (.LBB{{.*}}-[[JTBASE]])>>2
; CHECK-NEXT: .byte (.LBB{{.*}}-[[JTBASE]])>>2
; CHECK-NEXT: .byte (.LBB{{.*}}-[[JTBASE]])>>2
; CHECK-NEXT: .byte (.LBB{{.*}}-[[JTBASE]])>>2
define i32 @test_jumptable16(i32 %in) {
switch i32 %in, label %def [
i32 0, label %lbl1
i32 1, label %lbl2
i32 2, label %lbl3
i32 4, label %lbl4
]
; CHECK-LABEL: test_jumptable16:
; CHECK: adrp [[JTPAGE:x[0-9]+]], .LJTI1_0
; CHECK: add x[[JT:[0-9]+]], [[JTPAGE]], {{#?}}:lo12:.LJTI1_0
; CHECK: adr [[PCBASE:x[0-9]+]], [[JTBASE:.LBB[0-9]+_[0-9]+]]
; CHECK: ldrh w[[OFFSET:[0-9]+]], [x[[JT]], {{x[0-9]+}}, lsl #1]
; CHECK: add [[DEST:x[0-9]+]], [[PCBASE]], x[[OFFSET]], lsl #2
; CHECK: br [[DEST]]
def:
ret i32 0
lbl1:
ret i32 1
lbl2:
call i64 @llvm.aarch64.space(i32 1024, i64 undef)
ret i32 2
lbl3:
ret i32 4
lbl4:
ret i32 8
}
; CHECK: .rodata
; CHECK: .p2align 1
; CHECK: .LJTI1_0:
; CHECK-NEXT: .hword ([[JTBASE]]-[[JTBASE]])>>2
; CHECK-NEXT: .hword (.LBB{{.*}}-[[JTBASE]])>>2
; CHECK-NEXT: .hword (.LBB{{.*}}-[[JTBASE]])>>2
; CHECK-NEXT: .hword (.LBB{{.*}}-[[JTBASE]])>>2
; CHECK-NEXT: .hword (.LBB{{.*}}-[[JTBASE]])>>2
; CHECK-PIC-NOT: .data_region
; CHECK-PIC-NOT: .LJTI0_0
; CHECK-PIC: .LJTI0_0:
; CHECK-PIC-NEXT: .byte ([[JTBASE]]-[[JTBASE]])>>2
; CHECK-PIC-NEXT: .byte (.LBB{{.*}}-[[JTBASE]])>>2
; CHECK-PIC-NEXT: .byte (.LBB{{.*}}-[[JTBASE]])>>2
; CHECK-PIC-NEXT: .byte (.LBB{{.*}}-[[JTBASE]])>>2
; CHECK-PIC-NEXT: .byte (.LBB{{.*}}-[[JTBASE]])>>2
; CHECK-PIC-NOT: .end_data_region
; CHECK-IOS: .section __TEXT,__const
; CHECK-IOS-NOT: .data_region
; CHECK-IOS: LJTI0_0:
; CHECK-IOS-NEXT: .byte ([[JTBASE]]-[[JTBASE]])>>2
; CHECK-IOS-NEXT: .byte (LBB{{.*}}-[[JTBASE]])>>2
; CHECK-IOS-NEXT: .byte (LBB{{.*}}-[[JTBASE]])>>2
; CHECK-IOS-NEXT: .byte (LBB{{.*}}-[[JTBASE]])>>2
; CHECK-IOS-NEXT: .byte (LBB{{.*}}-[[JTBASE]])>>2
; CHECK-IOS-NOT: .end_data_region
; Compressing just the first table has the opportunity to truncate the vector of
; sizes. Make sure it doesn't.
define i32 @test_twotables(i32 %in1, i32 %in2) {
; CHECK-LABEL: test_twotables:
; CHECK: .LJTI2_0
; CHECK: .LJTI2_1
switch i32 %in1, label %def [
i32 0, label %lbl1
i32 1, label %lbl2
i32 2, label %lbl3
i32 4, label %lbl4
]
def:
ret i32 0
lbl1:
ret i32 1
lbl2:
ret i32 2
lbl3:
ret i32 4
lbl4:
switch i32 %in1, label %def [
i32 0, label %lbl5
i32 1, label %lbl6
i32 2, label %lbl7
i32 4, label %lbl8
]
lbl5:
call i64 @llvm.aarch64.space(i32 262144, i64 undef)
ret i32 1
lbl6:
call i64 @llvm.aarch64.space(i32 262144, i64 undef)
ret i32 2
lbl7:
call i64 @llvm.aarch64.space(i32 262144, i64 undef)
ret i32 4
lbl8:
call i64 @llvm.aarch64.space(i32 262144, i64 undef)
ret i32 8
}
declare i64 @llvm.aarch64.space(i32, i64)
|
