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llvm-project/llvm/test/CodeGen/ARM/cttz.ll

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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple arm-eabi -mattr=+v6t2 | FileCheck %s
; RUN: llc < %s -mtriple arm-eabi -mattr=+v6t2 -mattr=+neon | FileCheck %s
; RUN: llc < %s -mtriple thumbv6m-none-eabi | FileCheck %s --check-prefix=CHECK-6M
; RUN: llc < %s -mtriple thumbv8m.base-none-eabi | FileCheck %s --check-prefix=CHECK-8MBASE
; This test checks the @llvm.cttz.* intrinsics for integers.
declare i8 @llvm.cttz.i8(i8, i1)
declare i16 @llvm.cttz.i16(i16, i1)
declare i32 @llvm.cttz.i32(i32, i1)
declare i64 @llvm.cttz.i64(i64, i1)
;------------------------------------------------------------------------------
define i8 @test_i8(i8 %a) {
; CHECK-LABEL: test_i8:
; CHECK: @ %bb.0:
; CHECK-NEXT: orr r0, r0, #256
; CHECK-NEXT: rbit r0, r0
; CHECK-NEXT: clz r0, r0
; CHECK-NEXT: bx lr
;
; CHECK-6M-LABEL: test_i8:
; CHECK-6M: @ %bb.0:
; CHECK-6M-NEXT: lsls r1, r0, #24
; CHECK-6M-NEXT: beq .LBB0_3
; CHECK-6M-NEXT: @ %bb.1: @ %cond.false
; CHECK-6M-NEXT: cmp r0, #0
; CHECK-6M-NEXT: beq .LBB0_4
; CHECK-6M-NEXT: @ %bb.2: @ %cond.false
; CHECK-6M-NEXT: rsbs r1, r0, #0
; CHECK-6M-NEXT: ands r1, r0
; CHECK-6M-NEXT: ldr r0, .LCPI0_0
; CHECK-6M-NEXT: muls r0, r1, r0
; CHECK-6M-NEXT: lsrs r0, r0, #27
; CHECK-6M-NEXT: adr r1, .LCPI0_1
; CHECK-6M-NEXT: ldrb r0, [r1, r0]
; CHECK-6M-NEXT: bx lr
; CHECK-6M-NEXT: .LBB0_3:
; CHECK-6M-NEXT: movs r0, #8
; CHECK-6M-NEXT: bx lr
; CHECK-6M-NEXT: .LBB0_4:
; CHECK-6M-NEXT: movs r0, #32
; CHECK-6M-NEXT: bx lr
; CHECK-6M-NEXT: .p2align 2
; CHECK-6M-NEXT: @ %bb.5:
; CHECK-6M-NEXT: .LCPI0_0:
; CHECK-6M-NEXT: .long 125613361 @ 0x77cb531
; CHECK-6M-NEXT: .LCPI0_1:
; CHECK-6M-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
;
; CHECK-8MBASE-LABEL: test_i8:
; CHECK-8MBASE: @ %bb.0:
; CHECK-8MBASE-NEXT: lsls r1, r0, #24
; CHECK-8MBASE-NEXT: beq .LBB0_3
; CHECK-8MBASE-NEXT: @ %bb.1: @ %cond.false
; CHECK-8MBASE-NEXT: cbz r0, .LBB0_4
; CHECK-8MBASE-NEXT: @ %bb.2: @ %cond.false
; CHECK-8MBASE-NEXT: rsbs r1, r0, #0
; CHECK-8MBASE-NEXT: ands r1, r0
; CHECK-8MBASE-NEXT: movw r0, #46385
; CHECK-8MBASE-NEXT: movt r0, #1916
; CHECK-8MBASE-NEXT: muls r0, r1, r0
; CHECK-8MBASE-NEXT: lsrs r0, r0, #27
; CHECK-8MBASE-NEXT: adr r1, .LCPI0_0
; CHECK-8MBASE-NEXT: ldrb r0, [r1, r0]
; CHECK-8MBASE-NEXT: bx lr
; CHECK-8MBASE-NEXT: .LBB0_3:
; CHECK-8MBASE-NEXT: movs r0, #8
; CHECK-8MBASE-NEXT: bx lr
; CHECK-8MBASE-NEXT: .LBB0_4:
; CHECK-8MBASE-NEXT: movs r0, #32
; CHECK-8MBASE-NEXT: bx lr
; CHECK-8MBASE-NEXT: .p2align 2
; CHECK-8MBASE-NEXT: @ %bb.5:
; CHECK-8MBASE-NEXT: .LCPI0_0:
; CHECK-8MBASE-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
%tmp = call i8 @llvm.cttz.i8(i8 %a, i1 false)
ret i8 %tmp
}
define i16 @test_i16(i16 %a) {
; CHECK-LABEL: test_i16:
; CHECK: @ %bb.0:
; CHECK-NEXT: orr r0, r0, #65536
; CHECK-NEXT: rbit r0, r0
; CHECK-NEXT: clz r0, r0
; CHECK-NEXT: bx lr
;
; CHECK-6M-LABEL: test_i16:
; CHECK-6M: @ %bb.0:
; CHECK-6M-NEXT: lsls r1, r0, #16
; CHECK-6M-NEXT: beq .LBB1_3
; CHECK-6M-NEXT: @ %bb.1: @ %cond.false
; CHECK-6M-NEXT: cmp r0, #0
; CHECK-6M-NEXT: beq .LBB1_4
; CHECK-6M-NEXT: @ %bb.2: @ %cond.false
; CHECK-6M-NEXT: rsbs r1, r0, #0
; CHECK-6M-NEXT: ands r1, r0
; CHECK-6M-NEXT: ldr r0, .LCPI1_0
; CHECK-6M-NEXT: muls r0, r1, r0
; CHECK-6M-NEXT: lsrs r0, r0, #27
; CHECK-6M-NEXT: adr r1, .LCPI1_1
; CHECK-6M-NEXT: ldrb r0, [r1, r0]
; CHECK-6M-NEXT: bx lr
; CHECK-6M-NEXT: .LBB1_3:
; CHECK-6M-NEXT: movs r0, #16
; CHECK-6M-NEXT: bx lr
; CHECK-6M-NEXT: .LBB1_4:
; CHECK-6M-NEXT: movs r0, #32
; CHECK-6M-NEXT: bx lr
; CHECK-6M-NEXT: .p2align 2
; CHECK-6M-NEXT: @ %bb.5:
; CHECK-6M-NEXT: .LCPI1_0:
; CHECK-6M-NEXT: .long 125613361 @ 0x77cb531
; CHECK-6M-NEXT: .LCPI1_1:
; CHECK-6M-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
;
; CHECK-8MBASE-LABEL: test_i16:
; CHECK-8MBASE: @ %bb.0:
; CHECK-8MBASE-NEXT: lsls r1, r0, #16
; CHECK-8MBASE-NEXT: beq .LBB1_3
; CHECK-8MBASE-NEXT: @ %bb.1: @ %cond.false
; CHECK-8MBASE-NEXT: cbz r0, .LBB1_4
; CHECK-8MBASE-NEXT: @ %bb.2: @ %cond.false
; CHECK-8MBASE-NEXT: rsbs r1, r0, #0
; CHECK-8MBASE-NEXT: ands r1, r0
; CHECK-8MBASE-NEXT: movw r0, #46385
; CHECK-8MBASE-NEXT: movt r0, #1916
; CHECK-8MBASE-NEXT: muls r0, r1, r0
; CHECK-8MBASE-NEXT: lsrs r0, r0, #27
; CHECK-8MBASE-NEXT: adr r1, .LCPI1_0
; CHECK-8MBASE-NEXT: ldrb r0, [r1, r0]
; CHECK-8MBASE-NEXT: bx lr
; CHECK-8MBASE-NEXT: .LBB1_3:
; CHECK-8MBASE-NEXT: movs r0, #16
; CHECK-8MBASE-NEXT: bx lr
; CHECK-8MBASE-NEXT: .LBB1_4:
; CHECK-8MBASE-NEXT: movs r0, #32
; CHECK-8MBASE-NEXT: bx lr
; CHECK-8MBASE-NEXT: .p2align 2
; CHECK-8MBASE-NEXT: @ %bb.5:
; CHECK-8MBASE-NEXT: .LCPI1_0:
; CHECK-8MBASE-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
%tmp = call i16 @llvm.cttz.i16(i16 %a, i1 false)
ret i16 %tmp
}
define i32 @test_i32(i32 %a) {
; CHECK-LABEL: test_i32:
; CHECK: @ %bb.0:
; CHECK-NEXT: rbit r0, r0
; CHECK-NEXT: clz r0, r0
; CHECK-NEXT: bx lr
;
; CHECK-6M-LABEL: test_i32:
; CHECK-6M: @ %bb.0:
; CHECK-6M-NEXT: cmp r0, #0
; CHECK-6M-NEXT: beq .LBB2_3
; CHECK-6M-NEXT: @ %bb.1: @ %cond.false
; CHECK-6M-NEXT: cmp r0, #0
; CHECK-6M-NEXT: beq .LBB2_3
; CHECK-6M-NEXT: @ %bb.2: @ %cond.false
; CHECK-6M-NEXT: rsbs r1, r0, #0
; CHECK-6M-NEXT: ands r1, r0
; CHECK-6M-NEXT: ldr r0, .LCPI2_0
; CHECK-6M-NEXT: muls r0, r1, r0
; CHECK-6M-NEXT: lsrs r0, r0, #27
; CHECK-6M-NEXT: adr r1, .LCPI2_1
; CHECK-6M-NEXT: ldrb r0, [r1, r0]
; CHECK-6M-NEXT: bx lr
; CHECK-6M-NEXT: .LBB2_3:
; CHECK-6M-NEXT: movs r0, #32
; CHECK-6M-NEXT: bx lr
; CHECK-6M-NEXT: .p2align 2
; CHECK-6M-NEXT: @ %bb.4:
; CHECK-6M-NEXT: .LCPI2_0:
; CHECK-6M-NEXT: .long 125613361 @ 0x77cb531
; CHECK-6M-NEXT: .LCPI2_1:
; CHECK-6M-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
;
; CHECK-8MBASE-LABEL: test_i32:
; CHECK-8MBASE: @ %bb.0:
; CHECK-8MBASE-NEXT: cbz r0, .LBB2_3
; CHECK-8MBASE-NEXT: @ %bb.1: @ %cond.false
; CHECK-8MBASE-NEXT: cbz r0, .LBB2_3
; CHECK-8MBASE-NEXT: @ %bb.2: @ %cond.false
; CHECK-8MBASE-NEXT: rsbs r1, r0, #0
; CHECK-8MBASE-NEXT: ands r1, r0
; CHECK-8MBASE-NEXT: movw r0, #46385
; CHECK-8MBASE-NEXT: movt r0, #1916
; CHECK-8MBASE-NEXT: muls r0, r1, r0
; CHECK-8MBASE-NEXT: lsrs r0, r0, #27
; CHECK-8MBASE-NEXT: adr r1, .LCPI2_0
; CHECK-8MBASE-NEXT: ldrb r0, [r1, r0]
; CHECK-8MBASE-NEXT: bx lr
; CHECK-8MBASE-NEXT: .LBB2_3:
; CHECK-8MBASE-NEXT: movs r0, #32
; CHECK-8MBASE-NEXT: bx lr
; CHECK-8MBASE-NEXT: .p2align 2
; CHECK-8MBASE-NEXT: @ %bb.4:
; CHECK-8MBASE-NEXT: .LCPI2_0:
; CHECK-8MBASE-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
%tmp = call i32 @llvm.cttz.i32(i32 %a, i1 false)
ret i32 %tmp
}
define i64 @test_i64(i64 %a) {
; CHECK-LABEL: test_i64:
; CHECK: @ %bb.0:
; CHECK-NEXT: rbit r1, r1
; CHECK-NEXT: rbit r2, r0
; CHECK-NEXT: clz r1, r1
; CHECK-NEXT: cmp r0, #0
; CHECK-NEXT: add r1, r1, #32
; CHECK-NEXT: clzne r1, r2
; CHECK-NEXT: mov r0, r1
; CHECK-NEXT: mov r1, #0
; CHECK-NEXT: bx lr
;
; CHECK-6M-LABEL: test_i64:
; CHECK-6M: @ %bb.0:
; CHECK-6M-NEXT: .save {r4, r5, r7, lr}
; CHECK-6M-NEXT: push {r4, r5, r7, lr}
; CHECK-6M-NEXT: ldr r5, .LCPI3_0
; CHECK-6M-NEXT: adr r4, .LCPI3_1
; CHECK-6M-NEXT: movs r3, #32
; CHECK-6M-NEXT: cmp r0, #0
; CHECK-6M-NEXT: mov r2, r3
; CHECK-6M-NEXT: bne .LBB3_5
; CHECK-6M-NEXT: @ %bb.1:
; CHECK-6M-NEXT: cmp r1, #0
; CHECK-6M-NEXT: bne .LBB3_6
; CHECK-6M-NEXT: .LBB3_2:
; CHECK-6M-NEXT: cmp r0, #0
; CHECK-6M-NEXT: bne .LBB3_4
; CHECK-6M-NEXT: .LBB3_3:
; CHECK-6M-NEXT: adds r3, #32
; CHECK-6M-NEXT: mov r2, r3
; CHECK-6M-NEXT: .LBB3_4:
; CHECK-6M-NEXT: movs r1, #0
; CHECK-6M-NEXT: mov r0, r2
; CHECK-6M-NEXT: pop {r4, r5, r7, pc}
; CHECK-6M-NEXT: .LBB3_5:
; CHECK-6M-NEXT: rsbs r2, r0, #0
; CHECK-6M-NEXT: ands r2, r0
; CHECK-6M-NEXT: muls r2, r5, r2
; CHECK-6M-NEXT: lsrs r2, r2, #27
; CHECK-6M-NEXT: ldrb r2, [r4, r2]
; CHECK-6M-NEXT: cmp r1, #0
; CHECK-6M-NEXT: beq .LBB3_2
; CHECK-6M-NEXT: .LBB3_6:
; CHECK-6M-NEXT: rsbs r3, r1, #0
; CHECK-6M-NEXT: ands r3, r1
; CHECK-6M-NEXT: muls r5, r3, r5
; CHECK-6M-NEXT: lsrs r1, r5, #27
; CHECK-6M-NEXT: ldrb r3, [r4, r1]
; CHECK-6M-NEXT: cmp r0, #0
; CHECK-6M-NEXT: beq .LBB3_3
; CHECK-6M-NEXT: b .LBB3_4
; CHECK-6M-NEXT: .p2align 2
; CHECK-6M-NEXT: @ %bb.7:
; CHECK-6M-NEXT: .LCPI3_0:
; CHECK-6M-NEXT: .long 125613361 @ 0x77cb531
; CHECK-6M-NEXT: .LCPI3_1:
; CHECK-6M-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
;
; CHECK-8MBASE-LABEL: test_i64:
; CHECK-8MBASE: @ %bb.0:
; CHECK-8MBASE-NEXT: .save {r4, r5, r7, lr}
; CHECK-8MBASE-NEXT: push {r4, r5, r7, lr}
; CHECK-8MBASE-NEXT: movw r5, #46385
; CHECK-8MBASE-NEXT: movt r5, #1916
; CHECK-8MBASE-NEXT: adr r4, .LCPI3_0
; CHECK-8MBASE-NEXT: movs r3, #32
; CHECK-8MBASE-NEXT: mov r2, r3
; CHECK-8MBASE-NEXT: cbnz r0, .LBB3_5
; CHECK-8MBASE-NEXT: @ %bb.1:
; CHECK-8MBASE-NEXT: cbnz r1, .LBB3_6
; CHECK-8MBASE-NEXT: .LBB3_2:
; CHECK-8MBASE-NEXT: cbnz r0, .LBB3_4
; CHECK-8MBASE-NEXT: .LBB3_3:
; CHECK-8MBASE-NEXT: adds r3, #32
; CHECK-8MBASE-NEXT: mov r2, r3
; CHECK-8MBASE-NEXT: .LBB3_4:
; CHECK-8MBASE-NEXT: movs r1, #0
; CHECK-8MBASE-NEXT: mov r0, r2
; CHECK-8MBASE-NEXT: pop {r4, r5, r7, pc}
; CHECK-8MBASE-NEXT: .LBB3_5:
; CHECK-8MBASE-NEXT: rsbs r2, r0, #0
; CHECK-8MBASE-NEXT: ands r2, r0
; CHECK-8MBASE-NEXT: muls r2, r5, r2
; CHECK-8MBASE-NEXT: lsrs r2, r2, #27
; CHECK-8MBASE-NEXT: ldrb r2, [r4, r2]
; CHECK-8MBASE-NEXT: cmp r1, #0
; CHECK-8MBASE-NEXT: beq .LBB3_2
; CHECK-8MBASE-NEXT: .LBB3_6:
; CHECK-8MBASE-NEXT: rsbs r3, r1, #0
; CHECK-8MBASE-NEXT: ands r3, r1
; CHECK-8MBASE-NEXT: muls r5, r3, r5
; CHECK-8MBASE-NEXT: lsrs r1, r5, #27
; CHECK-8MBASE-NEXT: ldrb r3, [r4, r1]
; CHECK-8MBASE-NEXT: cmp r0, #0
; CHECK-8MBASE-NEXT: beq .LBB3_3
; CHECK-8MBASE-NEXT: b .LBB3_4
; CHECK-8MBASE-NEXT: .p2align 2
; CHECK-8MBASE-NEXT: @ %bb.7:
; CHECK-8MBASE-NEXT: .LCPI3_0:
; CHECK-8MBASE-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
%tmp = call i64 @llvm.cttz.i64(i64 %a, i1 false)
ret i64 %tmp
}
;------------------------------------------------------------------------------
define i8 @test_i8_zero_undef(i8 %a) {
; CHECK-LABEL: test_i8_zero_undef:
; CHECK: @ %bb.0:
; CHECK-NEXT: rbit r0, r0
; CHECK-NEXT: clz r0, r0
; CHECK-NEXT: bx lr
;
; CHECK-6M-LABEL: test_i8_zero_undef:
; CHECK-6M: @ %bb.0:
; CHECK-6M-NEXT: cmp r0, #0
; CHECK-6M-NEXT: beq .LBB4_2
; CHECK-6M-NEXT: @ %bb.1:
; CHECK-6M-NEXT: rsbs r1, r0, #0
; CHECK-6M-NEXT: ands r1, r0
; CHECK-6M-NEXT: ldr r0, .LCPI4_0
; CHECK-6M-NEXT: muls r0, r1, r0
; CHECK-6M-NEXT: lsrs r0, r0, #27
; CHECK-6M-NEXT: adr r1, .LCPI4_1
; CHECK-6M-NEXT: ldrb r0, [r1, r0]
; CHECK-6M-NEXT: bx lr
; CHECK-6M-NEXT: .LBB4_2:
; CHECK-6M-NEXT: movs r0, #32
; CHECK-6M-NEXT: bx lr
; CHECK-6M-NEXT: .p2align 2
; CHECK-6M-NEXT: @ %bb.3:
; CHECK-6M-NEXT: .LCPI4_0:
; CHECK-6M-NEXT: .long 125613361 @ 0x77cb531
; CHECK-6M-NEXT: .LCPI4_1:
; CHECK-6M-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
;
; CHECK-8MBASE-LABEL: test_i8_zero_undef:
; CHECK-8MBASE: @ %bb.0:
; CHECK-8MBASE-NEXT: cbz r0, .LBB4_2
; CHECK-8MBASE-NEXT: @ %bb.1:
; CHECK-8MBASE-NEXT: rsbs r1, r0, #0
; CHECK-8MBASE-NEXT: ands r1, r0
; CHECK-8MBASE-NEXT: movw r0, #46385
; CHECK-8MBASE-NEXT: movt r0, #1916
; CHECK-8MBASE-NEXT: muls r0, r1, r0
; CHECK-8MBASE-NEXT: lsrs r0, r0, #27
; CHECK-8MBASE-NEXT: adr r1, .LCPI4_0
; CHECK-8MBASE-NEXT: ldrb r0, [r1, r0]
; CHECK-8MBASE-NEXT: bx lr
; CHECK-8MBASE-NEXT: .LBB4_2:
; CHECK-8MBASE-NEXT: movs r0, #32
; CHECK-8MBASE-NEXT: bx lr
; CHECK-8MBASE-NEXT: .p2align 2
; CHECK-8MBASE-NEXT: @ %bb.3:
; CHECK-8MBASE-NEXT: .LCPI4_0:
; CHECK-8MBASE-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
%tmp = call i8 @llvm.cttz.i8(i8 %a, i1 true)
ret i8 %tmp
}
define i16 @test_i16_zero_undef(i16 %a) {
; CHECK-LABEL: test_i16_zero_undef:
; CHECK: @ %bb.0:
; CHECK-NEXT: rbit r0, r0
; CHECK-NEXT: clz r0, r0
; CHECK-NEXT: bx lr
;
; CHECK-6M-LABEL: test_i16_zero_undef:
; CHECK-6M: @ %bb.0:
; CHECK-6M-NEXT: cmp r0, #0
; CHECK-6M-NEXT: beq .LBB5_2
; CHECK-6M-NEXT: @ %bb.1:
; CHECK-6M-NEXT: rsbs r1, r0, #0
; CHECK-6M-NEXT: ands r1, r0
; CHECK-6M-NEXT: ldr r0, .LCPI5_0
; CHECK-6M-NEXT: muls r0, r1, r0
; CHECK-6M-NEXT: lsrs r0, r0, #27
; CHECK-6M-NEXT: adr r1, .LCPI5_1
; CHECK-6M-NEXT: ldrb r0, [r1, r0]
; CHECK-6M-NEXT: bx lr
; CHECK-6M-NEXT: .LBB5_2:
; CHECK-6M-NEXT: movs r0, #32
; CHECK-6M-NEXT: bx lr
; CHECK-6M-NEXT: .p2align 2
; CHECK-6M-NEXT: @ %bb.3:
; CHECK-6M-NEXT: .LCPI5_0:
; CHECK-6M-NEXT: .long 125613361 @ 0x77cb531
; CHECK-6M-NEXT: .LCPI5_1:
; CHECK-6M-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
;
; CHECK-8MBASE-LABEL: test_i16_zero_undef:
; CHECK-8MBASE: @ %bb.0:
; CHECK-8MBASE-NEXT: cbz r0, .LBB5_2
; CHECK-8MBASE-NEXT: @ %bb.1:
; CHECK-8MBASE-NEXT: rsbs r1, r0, #0
; CHECK-8MBASE-NEXT: ands r1, r0
; CHECK-8MBASE-NEXT: movw r0, #46385
; CHECK-8MBASE-NEXT: movt r0, #1916
; CHECK-8MBASE-NEXT: muls r0, r1, r0
; CHECK-8MBASE-NEXT: lsrs r0, r0, #27
; CHECK-8MBASE-NEXT: adr r1, .LCPI5_0
; CHECK-8MBASE-NEXT: ldrb r0, [r1, r0]
; CHECK-8MBASE-NEXT: bx lr
; CHECK-8MBASE-NEXT: .LBB5_2:
; CHECK-8MBASE-NEXT: movs r0, #32
; CHECK-8MBASE-NEXT: bx lr
; CHECK-8MBASE-NEXT: .p2align 2
; CHECK-8MBASE-NEXT: @ %bb.3:
; CHECK-8MBASE-NEXT: .LCPI5_0:
; CHECK-8MBASE-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
%tmp = call i16 @llvm.cttz.i16(i16 %a, i1 true)
ret i16 %tmp
}
define i32 @test_i32_zero_undef(i32 %a) {
; CHECK-LABEL: test_i32_zero_undef:
; CHECK: @ %bb.0:
; CHECK-NEXT: rbit r0, r0
; CHECK-NEXT: clz r0, r0
; CHECK-NEXT: bx lr
;
; CHECK-6M-LABEL: test_i32_zero_undef:
; CHECK-6M: @ %bb.0:
; CHECK-6M-NEXT: cmp r0, #0
; CHECK-6M-NEXT: beq .LBB6_2
; CHECK-6M-NEXT: @ %bb.1:
; CHECK-6M-NEXT: rsbs r1, r0, #0
; CHECK-6M-NEXT: ands r1, r0
; CHECK-6M-NEXT: ldr r0, .LCPI6_0
; CHECK-6M-NEXT: muls r0, r1, r0
; CHECK-6M-NEXT: lsrs r0, r0, #27
; CHECK-6M-NEXT: adr r1, .LCPI6_1
; CHECK-6M-NEXT: ldrb r0, [r1, r0]
; CHECK-6M-NEXT: bx lr
; CHECK-6M-NEXT: .LBB6_2:
; CHECK-6M-NEXT: movs r0, #32
; CHECK-6M-NEXT: bx lr
; CHECK-6M-NEXT: .p2align 2
; CHECK-6M-NEXT: @ %bb.3:
; CHECK-6M-NEXT: .LCPI6_0:
; CHECK-6M-NEXT: .long 125613361 @ 0x77cb531
; CHECK-6M-NEXT: .LCPI6_1:
; CHECK-6M-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
;
; CHECK-8MBASE-LABEL: test_i32_zero_undef:
; CHECK-8MBASE: @ %bb.0:
; CHECK-8MBASE-NEXT: cbz r0, .LBB6_2
; CHECK-8MBASE-NEXT: @ %bb.1:
; CHECK-8MBASE-NEXT: rsbs r1, r0, #0
; CHECK-8MBASE-NEXT: ands r1, r0
; CHECK-8MBASE-NEXT: movw r0, #46385
; CHECK-8MBASE-NEXT: movt r0, #1916
; CHECK-8MBASE-NEXT: muls r0, r1, r0
; CHECK-8MBASE-NEXT: lsrs r0, r0, #27
; CHECK-8MBASE-NEXT: adr r1, .LCPI6_0
; CHECK-8MBASE-NEXT: ldrb r0, [r1, r0]
; CHECK-8MBASE-NEXT: bx lr
; CHECK-8MBASE-NEXT: .LBB6_2:
; CHECK-8MBASE-NEXT: movs r0, #32
; CHECK-8MBASE-NEXT: bx lr
; CHECK-8MBASE-NEXT: .p2align 2
; CHECK-8MBASE-NEXT: @ %bb.3:
; CHECK-8MBASE-NEXT: .LCPI6_0:
; CHECK-8MBASE-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
%tmp = call i32 @llvm.cttz.i32(i32 %a, i1 true)
ret i32 %tmp
}
define i64 @test_i64_zero_undef(i64 %a) {
; CHECK-LABEL: test_i64_zero_undef:
; CHECK: @ %bb.0:
; CHECK-NEXT: rbit r1, r1
; CHECK-NEXT: rbit r2, r0
; CHECK-NEXT: clz r1, r1
; CHECK-NEXT: cmp r0, #0
; CHECK-NEXT: add r1, r1, #32
; CHECK-NEXT: clzne r1, r2
; CHECK-NEXT: mov r0, r1
; CHECK-NEXT: mov r1, #0
; CHECK-NEXT: bx lr
;
; CHECK-6M-LABEL: test_i64_zero_undef:
; CHECK-6M: @ %bb.0:
; CHECK-6M-NEXT: .save {r4, r5, r7, lr}
; CHECK-6M-NEXT: push {r4, r5, r7, lr}
; CHECK-6M-NEXT: ldr r5, .LCPI7_0
; CHECK-6M-NEXT: adr r4, .LCPI7_1
; CHECK-6M-NEXT: movs r3, #32
; CHECK-6M-NEXT: cmp r0, #0
; CHECK-6M-NEXT: mov r2, r3
; CHECK-6M-NEXT: bne .LBB7_5
; CHECK-6M-NEXT: @ %bb.1:
; CHECK-6M-NEXT: cmp r1, #0
; CHECK-6M-NEXT: bne .LBB7_6
; CHECK-6M-NEXT: .LBB7_2:
; CHECK-6M-NEXT: cmp r0, #0
; CHECK-6M-NEXT: bne .LBB7_4
; CHECK-6M-NEXT: .LBB7_3:
; CHECK-6M-NEXT: adds r3, #32
; CHECK-6M-NEXT: mov r2, r3
; CHECK-6M-NEXT: .LBB7_4:
; CHECK-6M-NEXT: movs r1, #0
; CHECK-6M-NEXT: mov r0, r2
; CHECK-6M-NEXT: pop {r4, r5, r7, pc}
; CHECK-6M-NEXT: .LBB7_5:
; CHECK-6M-NEXT: rsbs r2, r0, #0
; CHECK-6M-NEXT: ands r2, r0
; CHECK-6M-NEXT: muls r2, r5, r2
; CHECK-6M-NEXT: lsrs r2, r2, #27
; CHECK-6M-NEXT: ldrb r2, [r4, r2]
; CHECK-6M-NEXT: cmp r1, #0
; CHECK-6M-NEXT: beq .LBB7_2
; CHECK-6M-NEXT: .LBB7_6:
; CHECK-6M-NEXT: rsbs r3, r1, #0
; CHECK-6M-NEXT: ands r3, r1
; CHECK-6M-NEXT: muls r5, r3, r5
; CHECK-6M-NEXT: lsrs r1, r5, #27
; CHECK-6M-NEXT: ldrb r3, [r4, r1]
; CHECK-6M-NEXT: cmp r0, #0
; CHECK-6M-NEXT: beq .LBB7_3
; CHECK-6M-NEXT: b .LBB7_4
; CHECK-6M-NEXT: .p2align 2
; CHECK-6M-NEXT: @ %bb.7:
; CHECK-6M-NEXT: .LCPI7_0:
; CHECK-6M-NEXT: .long 125613361 @ 0x77cb531
; CHECK-6M-NEXT: .LCPI7_1:
; CHECK-6M-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
;
; CHECK-8MBASE-LABEL: test_i64_zero_undef:
; CHECK-8MBASE: @ %bb.0:
; CHECK-8MBASE-NEXT: .save {r4, r5, r7, lr}
; CHECK-8MBASE-NEXT: push {r4, r5, r7, lr}
; CHECK-8MBASE-NEXT: movw r5, #46385
; CHECK-8MBASE-NEXT: movt r5, #1916
; CHECK-8MBASE-NEXT: adr r4, .LCPI7_0
; CHECK-8MBASE-NEXT: movs r3, #32
; CHECK-8MBASE-NEXT: mov r2, r3
; CHECK-8MBASE-NEXT: cbnz r0, .LBB7_5
; CHECK-8MBASE-NEXT: @ %bb.1:
; CHECK-8MBASE-NEXT: cbnz r1, .LBB7_6
; CHECK-8MBASE-NEXT: .LBB7_2:
; CHECK-8MBASE-NEXT: cbnz r0, .LBB7_4
; CHECK-8MBASE-NEXT: .LBB7_3:
; CHECK-8MBASE-NEXT: adds r3, #32
; CHECK-8MBASE-NEXT: mov r2, r3
; CHECK-8MBASE-NEXT: .LBB7_4:
; CHECK-8MBASE-NEXT: movs r1, #0
; CHECK-8MBASE-NEXT: mov r0, r2
; CHECK-8MBASE-NEXT: pop {r4, r5, r7, pc}
; CHECK-8MBASE-NEXT: .LBB7_5:
; CHECK-8MBASE-NEXT: rsbs r2, r0, #0
; CHECK-8MBASE-NEXT: ands r2, r0
; CHECK-8MBASE-NEXT: muls r2, r5, r2
; CHECK-8MBASE-NEXT: lsrs r2, r2, #27
; CHECK-8MBASE-NEXT: ldrb r2, [r4, r2]
; CHECK-8MBASE-NEXT: cmp r1, #0
; CHECK-8MBASE-NEXT: beq .LBB7_2
; CHECK-8MBASE-NEXT: .LBB7_6:
; CHECK-8MBASE-NEXT: rsbs r3, r1, #0
; CHECK-8MBASE-NEXT: ands r3, r1
; CHECK-8MBASE-NEXT: muls r5, r3, r5
; CHECK-8MBASE-NEXT: lsrs r1, r5, #27
; CHECK-8MBASE-NEXT: ldrb r3, [r4, r1]
; CHECK-8MBASE-NEXT: cmp r0, #0
; CHECK-8MBASE-NEXT: beq .LBB7_3
; CHECK-8MBASE-NEXT: b .LBB7_4
; CHECK-8MBASE-NEXT: .p2align 2
; CHECK-8MBASE-NEXT: @ %bb.7:
; CHECK-8MBASE-NEXT: .LCPI7_0:
; CHECK-8MBASE-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
%tmp = call i64 @llvm.cttz.i64(i64 %a, i1 true)
ret i64 %tmp
}
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