Pre-commit tests

Author: topperc

llvm/test/CodeGen/RISCV/pr145360.ll

@@ -0,0 +1,69 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
+; RUN: llc < %s -mtriple=riscv64 -mattr=+m | FileCheck %s
+
+define i32 @signed(i32 %0, ptr %1) {
+; CHECK-LABEL: signed:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    sraiw a0, a0, 8
+; CHECK-NEXT:    sw zero, 0(a1)
+; CHECK-NEXT:    ret
+  %rem = srem i32 %0, 256
+  store i32 %rem, ptr %1, align 4
+  %div = sdiv exact i32 %0, 256
+  ret i32 %div
+}
+
+define i32 @unsigned(i32 %0, ptr %1) {
+; CHECK-LABEL: unsigned:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    srliw a0, a0, 3
+; CHECK-NEXT:    lui a2, 699051
+; CHECK-NEXT:    addi a2, a2, -1365
+; CHECK-NEXT:    mulw a0, a0, a2
+; CHECK-NEXT:    sw zero, 0(a1)
+; CHECK-NEXT:    ret
+  %rem = urem i32 %0, 24
+  store i32 %rem, ptr %1, align 4
+  %div = udiv exact i32 %0, 24
+  ret i32 %div
+}
+
+define i32 @signed_div_first(i32 %0, ptr %1) {
+; CHECK-LABEL: signed_div_first:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    sraiw a2, a0, 31
+; CHECK-NEXT:    srliw a2, a2, 24
+; CHECK-NEXT:    add a3, a0, a2
+; CHECK-NEXT:    sraiw a2, a3, 8
+; CHECK-NEXT:    andi a3, a3, -256
+; CHECK-NEXT:    subw a0, a0, a3
+; CHECK-NEXT:    sw a0, 0(a1)
+; CHECK-NEXT:    mv a0, a2
+; CHECK-NEXT:    ret
+  %div = sdiv exact i32 %0, 256
+  %rem = srem i32 %0, 256
+  store i32 %rem, ptr %1, align 4
+  ret i32 %div
+}
+
+define i32 @unsigned_div_first(i32 %0, ptr %1) {
+; CHECK-LABEL: unsigned_div_first:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    slli a2, a0, 32
+; CHECK-NEXT:    lui a3, 699051
+; CHECK-NEXT:    addi a3, a3, -1365
+; CHECK-NEXT:    slli a3, a3, 32
+; CHECK-NEXT:    mulhu a2, a2, a3
+; CHECK-NEXT:    srli a2, a2, 36
+; CHECK-NEXT:    slli a3, a2, 5
+; CHECK-NEXT:    slli a4, a2, 3
+; CHECK-NEXT:    subw a4, a4, a3
+; CHECK-NEXT:    add a0, a0, a4
+; CHECK-NEXT:    sw a0, 0(a1)
+; CHECK-NEXT:    mv a0, a2
+; CHECK-NEXT:    ret
+  %div = udiv exact i32 %0, 24
+  %rem = urem i32 %0, 24
+  store i32 %rem, ptr %1, align 4
+  ret i32 %div
+}