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| ; RUN: llc -o - %s -mtriple=aarch64-none-linux-gnu -mattr=+force-32bit-jump-tables -aarch64-enable-atomic-cfg-tidy=0 | FileCheck %s
; RUN: llc -o - %s -mtriple=aarch64-none-linux-gnu -mcpu=exynos-m1 -aarch64-enable-atomic-cfg-tidy=0 | FileCheck %s
; RUN: llc -o - %s -mtriple=aarch64-none-linux-gnu -mcpu=exynos-m2 -aarch64-enable-atomic-cfg-tidy=0 | FileCheck %s
; RUN: llc -o - %s -mtriple=aarch64-none-linux-gnu -mcpu=exynos-m3 -aarch64-enable-atomic-cfg-tidy=0 | FileCheck %s
; Exynos doesn't want jump tables to be compressed for now.
define i32 @test_jumptable(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_jumptable:
; CHECK-NOT: ldrb
def:
ret i32 0
lbl1:
ret i32 1
lbl2:
ret i32 2
lbl3:
ret i32 4
lbl4:
ret i32 8
}
define i32 @test_jumptable_minsize(i32 %in) minsize {
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_minsize:
; 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: ldrb w[[OFFSET:[0-9]+]], [x[[JT]], {{x[0-9]+}}]
; CHECK: add [[DEST:x[0-9]+]], [[PCBASE]], x[[OFFSET]], lsl #2
; CHECK: br [[DEST]]
def:
ret i32 0
lbl1:
ret i32 1
lbl2:
ret i32 2
lbl3:
ret i32 4
lbl4:
ret i32 8
}
|