llvm-for-llvmta/test/CodeGen/ARM/ssat-with-shift.ll

56 lines
1.5 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=armv6-eabi %s -o - | FileCheck %s
; RUN: llc -mtriple=thumbv8.1m.main-arm-none-eabi -mattr=+dsp %s -o - | FileCheck %s
define arm_aapcs_vfpcc i32 @ssat_lsl(i32 %num){
; CHECK-LABEL: ssat_lsl
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: ssat r0, #8, r0, lsl #7
; CHECK-NEXT: bx lr
entry:
%shl = shl i32 %num, 7
%0 = tail call i32 @llvm.arm.ssat(i32 %shl, i32 8)
ret i32 %0
}
define arm_aapcs_vfpcc i32 @ssat_asr(i32 %num){
; CHECK-LABEL: ssat_asr
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: ssat r0, #8, r0, asr #7
; CHECK-NEXT: bx lr
entry:
%shr = ashr i32 %num, 7
%0 = tail call i32 @llvm.arm.ssat(i32 %shr, i32 8)
ret i32 %0
}
define arm_aapcs_vfpcc i32 @ssat_lsl2(i32 %num){
; CHECK-LABEL: ssat_lsl2:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: ssat r0, #16, r0, lsl #15
; CHECK-NEXT: bx lr
entry:
%shl = shl nsw i32 %num, 15
%0 = icmp sgt i32 %shl, -32768
%1 = select i1 %0, i32 %shl, i32 -32768
%2 = icmp slt i32 %1, 32767
%3 = select i1 %2, i32 %1, i32 32767
ret i32 %3
}
define arm_aapcs_vfpcc i32 @ssat_asr2(i32 %num){
; CHECK-LABEL: ssat_asr2:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: ssat r0, #16, r0, asr #15
; CHECK-NEXT: bx lr
entry:
%shr = ashr i32 %num, 15
%0 = icmp sgt i32 %shr, -32768
%1 = select i1 %0, i32 %shr, i32 -32768
%2 = icmp slt i32 %1, 32767
%3 = select i1 %2, i32 %1, i32 32767
ret i32 %3
}
declare i32 @llvm.arm.ssat(i32, i32)