1; RUN: llc < %s -mattr=+sign-ext -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers | FileCheck %s 2; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers | FileCheck %s --check-prefix=NOSIGNEXT 3 4target triple = "wasm32-unknown-unknown" 5 6; CHECK-LABEL: i32_extend8_s: 7; CHECK-NEXT: .functype i32_extend8_s (i32) -> (i32){{$}} 8; CHECK-NEXT: i32.extend8_s $push[[NUM:[0-9]+]]=, $0{{$}} 9; CHECK-NEXT: return $pop[[NUM]]{{$}} 10 11; NOSIGNEXT-LABEL: i32_extend8_s 12; NOSIGNEXT-NOT: i32.extend8_s 13define i32 @i32_extend8_s(i8 %x) { 14 %a = sext i8 %x to i32 15 ret i32 %a 16} 17 18; CHECK-LABEL: i32_extend16_s: 19; CHECK-NEXT: .functype i32_extend16_s (i32) -> (i32){{$}} 20; CHECK-NEXT: i32.extend16_s $push[[NUM:[0-9]+]]=, $0{{$}} 21; CHECK-NEXT: return $pop[[NUM]]{{$}} 22 23; NOSIGNEXT-LABEL: i32_extend16_s 24; NOSIGNEXT-NOT: i32.extend16_s 25define i32 @i32_extend16_s(i16 %x) { 26 %a = sext i16 %x to i32 27 ret i32 %a 28} 29 30; CHECK-LABEL: i64_extend8_s: 31; CHECK-NEXT: .functype i64_extend8_s (i32) -> (i64){{$}} 32; CHECK-NEXT: i64.extend_i32_u $push[[NUM1:[0-9]+]]=, $0{{$}} 33; CHECK-NEXT: i64.extend8_s $push[[NUM2:[0-9]+]]=, $pop[[NUM1]]{{$}} 34; CHECK-NEXT: return $pop[[NUM2]]{{$}} 35 36; NOSIGNEXT-LABEL: i64_extend8_s 37; NOSIGNEXT-NOT: i64.extend8_s 38define i64 @i64_extend8_s(i8 %x) { 39 %a = sext i8 %x to i64 40 ret i64 %a 41} 42 43; CHECK-LABEL: i64_extend16_s: 44; CHECK-NEXT: .functype i64_extend16_s (i32) -> (i64){{$}} 45; CHECK-NEXT: i64.extend_i32_u $push[[NUM1:[0-9]+]]=, $0{{$}} 46; CHECK-NEXT: i64.extend16_s $push[[NUM2:[0-9]+]]=, $pop[[NUM1]]{{$}} 47; CHECK-NEXT: return $pop[[NUM2]]{{$}} 48 49; NOSIGNEXT-LABEL: i64_extend16_s 50; NOSIGNEXT-NOT: i16.extend16_s 51define i64 @i64_extend16_s(i16 %x) { 52 %a = sext i16 %x to i64 53 ret i64 %a 54} 55 56; No SIGN_EXTEND_INREG is needed for 32->64 extension. 57; CHECK-LABEL: i64_extend32_s: 58; CHECK-NEXT: .functype i64_extend32_s (i32) -> (i64){{$}} 59; CHECK-NEXT: i64.extend_i32_s $push[[NUM:[0-9]+]]=, $0{{$}} 60; CHECK-NEXT: return $pop[[NUM]]{{$}} 61define i64 @i64_extend32_s(i32 %x) { 62 %a = sext i32 %x to i64 63 ret i64 %a 64} 65