; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5 ; RUN: llc < %s -mtriple=aarch64-none-linux-gnu | FileCheck %s ; and can be eliminated define i32 @test_call_known_max_range() #0 { ; CHECK-LABEL: test_call_known_max_range: ; CHECK: // %bb.0: // %entry ; CHECK-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill ; CHECK-NEXT: bl foo ; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload ; CHECK-NEXT: ret entry: %id = tail call i32 @foo(), !range !0, !noundef !{} %and = and i32 %id, 1023 ret i32 %and } define i32 @test_call_known_trunc_1_bit_range() #0 { ; CHECK-LABEL: test_call_known_trunc_1_bit_range: ; CHECK: // %bb.0: // %entry ; CHECK-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill ; CHECK-NEXT: bl foo ; CHECK-NEXT: and w0, w0, #0x1ff ; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload ; CHECK-NEXT: ret entry: %id = tail call i32 @foo(), !range !0, !noundef !{} %and = and i32 %id, 511 ret i32 %and } define i32 @test_call_known_max_range_m1() #0 { ; CHECK-LABEL: test_call_known_max_range_m1: ; CHECK: // %bb.0: // %entry ; CHECK-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill ; CHECK-NEXT: bl foo ; CHECK-NEXT: and w0, w0, #0xff ; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload ; CHECK-NEXT: ret entry: %id = tail call i32 @foo(), !range !1, !noundef !{} %and = and i32 %id, 255 ret i32 %and } ; and can be eliminated define i32 @test_call_known_max_range_attr() #0 { ; CHECK-LABEL: test_call_known_max_range_attr: ; CHECK: // %bb.0: // %entry ; CHECK-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill ; CHECK-NEXT: bl foo ; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload ; CHECK-NEXT: ret entry: %id = tail call noundef range(i32 0, 1024) i32 @foo() %and = and i32 %id, 1023 ret i32 %and } define i32 @test_call_known_max_range_attr_no_noundef() #0 { ; CHECK-LABEL: test_call_known_max_range_attr_no_noundef: ; CHECK: // %bb.0: // %entry ; CHECK-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill ; CHECK-NEXT: bl foo ; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload ; CHECK-NEXT: ret entry: %id = tail call range(i32 0, 1024) i32 @foo() %and = and i32 %id, 1023 ret i32 %and } declare i32 @foo() attributes #0 = { norecurse nounwind } attributes #1 = { nounwind readnone } !0 = !{i32 0, i32 1024} !1 = !{i32 0, i32 1023}