derek.holloway
7502bf64a4
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138 lines
3.3 KiB
LLVM
138 lines
3.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=aarch64-unknown-linux-gnu < %s | FileCheck %s
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define i16 @fold_srem_1_i16(i16 %x) {
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; CHECK-LABEL: fold_srem_1_i16:
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; CHECK: // %bb.0:
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; CHECK-NEXT: mov w0, wzr
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; CHECK-NEXT: ret
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%1 = srem i16 %x, 1
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ret i16 %1
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}
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define i32 @fold_srem_1_i32(i32 %x) {
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; CHECK-LABEL: fold_srem_1_i32:
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; CHECK: // %bb.0:
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; CHECK-NEXT: mov w0, wzr
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; CHECK-NEXT: ret
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%1 = srem i32 %x, 1
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ret i32 %1
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}
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define i64 @fold_srem_1_i64(i64 %x) {
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; CHECK-LABEL: fold_srem_1_i64:
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; CHECK: // %bb.0:
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; CHECK-NEXT: mov x0, xzr
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; CHECK-NEXT: ret
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%1 = srem i64 %x, 1
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ret i64 %1
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}
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define i16 @fold_srem_2_i16(i16 %x) {
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; CHECK-LABEL: fold_srem_2_i16:
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; CHECK: // %bb.0:
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; CHECK-NEXT: and w8, w0, #0x8000
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; CHECK-NEXT: add w8, w0, w8, lsr #15
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; CHECK-NEXT: and w8, w8, #0xfffffffe
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; CHECK-NEXT: sub w0, w0, w8
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; CHECK-NEXT: ret
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%1 = srem i16 %x, 2
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ret i16 %1
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}
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define i32 @fold_srem_2_i64(i32 %x) {
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; CHECK-LABEL: fold_srem_2_i64:
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; CHECK: // %bb.0:
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; CHECK-NEXT: and w8, w0, #0x1
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; CHECK-NEXT: cmp w0, #0
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; CHECK-NEXT: cneg w0, w8, mi
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; CHECK-NEXT: ret
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%1 = srem i32 %x, 2
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ret i32 %1
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}
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define i64 @fold_srem_2_i32(i64 %x) {
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; CHECK-LABEL: fold_srem_2_i32:
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; CHECK: // %bb.0:
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; CHECK-NEXT: and x8, x0, #0x1
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; CHECK-NEXT: cmp x0, #0
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; CHECK-NEXT: cneg x0, x8, mi
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; CHECK-NEXT: ret
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%1 = srem i64 %x, 2
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ret i64 %1
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}
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define i16 @fold_srem_pow2_i16(i16 %x) {
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; CHECK-LABEL: fold_srem_pow2_i16:
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; CHECK: // %bb.0:
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; CHECK-NEXT: sxth w8, w0
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; CHECK-NEXT: ubfx w8, w8, #25, #6
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; CHECK-NEXT: add w8, w0, w8
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; CHECK-NEXT: and w8, w8, #0xffffffc0
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; CHECK-NEXT: sub w0, w0, w8
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; CHECK-NEXT: ret
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%1 = srem i16 %x, 64
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ret i16 %1
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}
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define i32 @fold_srem_pow2_i32(i32 %x) {
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; CHECK-LABEL: fold_srem_pow2_i32:
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; CHECK: // %bb.0:
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; CHECK-NEXT: negs w8, w0
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; CHECK-NEXT: and w9, w0, #0x3f
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; CHECK-NEXT: and w8, w8, #0x3f
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; CHECK-NEXT: csneg w0, w9, w8, mi
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; CHECK-NEXT: ret
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%1 = srem i32 %x, 64
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ret i32 %1
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}
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define i64 @fold_srem_pow2_i64(i64 %x) {
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; CHECK-LABEL: fold_srem_pow2_i64:
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; CHECK: // %bb.0:
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; CHECK-NEXT: negs x8, x0
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; CHECK-NEXT: and x9, x0, #0x3f
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; CHECK-NEXT: and x8, x8, #0x3f
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; CHECK-NEXT: csneg x0, x9, x8, mi
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; CHECK-NEXT: ret
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%1 = srem i64 %x, 64
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ret i64 %1
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}
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define i16 @fold_srem_smax_i16(i16 %x) {
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; CHECK-LABEL: fold_srem_smax_i16:
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; CHECK: // %bb.0:
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; CHECK-NEXT: sxth w8, w0
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; CHECK-NEXT: ubfx w8, w8, #16, #15
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; CHECK-NEXT: add w8, w0, w8
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; CHECK-NEXT: and w8, w8, #0xffff8000
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; CHECK-NEXT: add w0, w0, w8
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; CHECK-NEXT: ret
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%1 = srem i16 %x, 32768
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ret i16 %1
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}
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define i32 @fold_srem_smax_i32(i32 %x) {
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; CHECK-LABEL: fold_srem_smax_i32:
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; CHECK: // %bb.0:
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; CHECK-NEXT: negs w8, w0
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; CHECK-NEXT: and w9, w0, #0x7fffffff
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; CHECK-NEXT: and w8, w8, #0x7fffffff
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; CHECK-NEXT: csneg w0, w9, w8, mi
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; CHECK-NEXT: ret
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%1 = srem i32 %x, 2147483648
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ret i32 %1
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}
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define i64 @fold_srem_smax_i64(i64 %x) {
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; CHECK-LABEL: fold_srem_smax_i64:
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; CHECK: // %bb.0:
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; CHECK-NEXT: negs x8, x0
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; CHECK-NEXT: and x9, x0, #0x7fffffffffffffff
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; CHECK-NEXT: and x8, x8, #0x7fffffffffffffff
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; CHECK-NEXT: csneg x0, x9, x8, mi
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; CHECK-NEXT: ret
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%1 = srem i64 %x, -9223372036854775808
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ret i64 %1
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}
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