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llvm/llvm/test/CodeGen/WebAssembly/conv-trap.ll 

; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -mcpu=mvp -mattr=-nontrapping-fptoint | FileCheck %s

; Test that basic conversion operations assemble as expected using
; the trapping opcodes and explicit code to suppress the trapping.

target triple = "wasm32-unknown-unknown"

; CHECK-LABEL: i32_trunc_s_f32:
; CHECK-NEXT: .functype i32_trunc_s_f32 (f32) -> (i32){{$}}
; CHECK-NEXT: block
; CHECK-NEXT: f32.abs $push[[ABS:[0-9]+]]=, $0{{$}}
; CHECK-NEXT: f32.const $push[[LIMIT:[0-9]+]]=, 0x1p31{{$}}
; CHECK-NEXT: f32.lt $push[[LT:[0-9]+]]=, $pop[[ABS]], $pop[[LIMIT]]{{$}}
; CHECK-NEXT: i32.eqz $push[[EQZ:[0-9]+]]=, $pop[[LT]]
; CHECK-NEXT: br_if 0, $pop[[EQZ]]{{$}}
; CHECK-NEXT: i32.trunc_f32_s $push[[NUM:[0-9]+]]=, $0{{$}}
; CHECK-NEXT: return $pop[[NUM]]{{$}}
; CHECK-NEXT: BB
; CHECK-NEXT: end_block
; CHECK-NEXT: i32.const $push[[ALT:[0-9]+]]=, -2147483648{{$}}
; CHECK-NEXT: return $pop[[ALT]]{{$}}
define i32 @i32_trunc_s_f32(float %x) {
  %a = fptosi float %x to i32
  ret i32 %a
}

; CHECK-LABEL: i32_trunc_u_f32:
; CHECK-NEXT: .functype i32_trunc_u_f32 (f32) -> (i32){{$}}
; CHECK-NEXT: block
; CHECK-NEXT: f32.const $push[[LIMIT:[0-9]+]]=, 0x1p32{{$}}
; CHECK-NEXT: f32.lt $push[[LT:[0-9]+]]=, $0, $pop[[LIMIT]]{{$}}
; CHECK-NEXT: f32.const $push[[ZERO:[0-9]+]]=, 0x0p0{{$}}
; CHECK-NEXT: f32.ge $push[[GE:[0-9]+]]=, $0, $pop[[ZERO]]{{$}}
; CHECK-NEXT: i32.and $push[[AND:[0-9]+]]=, $pop[[LT]], $pop[[GE]]{{$}}
; CHECK-NEXT: i32.eqz $push[[EQZ:[0-9]+]]=, $pop[[AND]]
; CHECK-NEXT: br_if 0, $pop[[EQZ]]{{$}}
; CHECK-NEXT: i32.trunc_f32_u $push[[NUM:[0-9]+]]=, $0{{$}}
; CHECK-NEXT: return $pop[[NUM]]{{$}}
; CHECK-NEXT: BB
; CHECK-NEXT: end_block
; CHECK-NEXT: i32.const $push[[ALT:[0-9]+]]=, 0{{$}}
; CHECK-NEXT: return $pop[[ALT]]{{$}}
define i32 @i32_trunc_u_f32(float %x) {
  %a = fptoui float %x to i32
  ret i32 %a
}

; CHECK-LABEL: i32_trunc_s_f64:
; CHECK-NEXT: .functype i32_trunc_s_f64 (f64) -> (i32){{$}}
; CHECK-NEXT: block
; CHECK-NEXT: f64.abs $push[[ABS:[0-9]+]]=, $0{{$}}
; CHECK-NEXT: f64.const $push[[LIMIT:[0-9]+]]=, 0x1p31{{$}}
; CHECK-NEXT: f64.lt $push[[LT:[0-9]+]]=, $pop[[ABS]], $pop[[LIMIT]]{{$}}
; CHECK-NEXT: i32.eqz $push[[EQZ:[0-9]+]]=, $pop[[LT]]
; CHECK-NEXT: br_if 0, $pop[[EQZ]]{{$}}
; CHECK-NEXT: i32.trunc_f64_s $push[[NUM:[0-9]+]]=, $0{{$}}
; CHECK-NEXT: return $pop[[NUM]]{{$}}
; CHECK-NEXT: BB
; CHECK-NEXT: end_block
; CHECK-NEXT: i32.const $push[[ALT:[0-9]+]]=, -2147483648{{$}}
; CHECK-NEXT: return $pop[[ALT]]{{$}}
define i32 @i32_trunc_s_f64(double %x) {
  %a = fptosi double %x to i32
  ret i32 %a
}

; CHECK-LABEL: i32_trunc_u_f64:
; CHECK-NEXT: .functype i32_trunc_u_f64 (f64) -> (i32){{$}}
; CHECK-NEXT: block
; CHECK-NEXT: f64.const $push[[LIMIT:[0-9]+]]=, 0x1p32{{$}}
; CHECK-NEXT: f64.lt $push[[LT:[0-9]+]]=, $0, $pop[[LIMIT]]{{$}}
; CHECK-NEXT: f64.const $push[[ZERO:[0-9]+]]=, 0x0p0{{$}}
; CHECK-NEXT: f64.ge $push[[GE:[0-9]+]]=, $0, $pop[[ZERO]]{{$}}
; CHECK-NEXT: i32.and $push[[AND:[0-9]+]]=, $pop[[LT]], $pop[[GE]]{{$}}
; CHECK-NEXT: i32.eqz $push[[EQZ:[0-9]+]]=, $pop[[AND]]
; CHECK-NEXT: br_if 0, $pop[[EQZ]]{{$}}
; CHECK-NEXT: i32.trunc_f64_u $push[[NUM:[0-9]+]]=, $0{{$}}
; CHECK-NEXT: return $pop[[NUM]]{{$}}
; CHECK-NEXT: BB
; CHECK-NEXT: end_block
; CHECK-NEXT: i32.const $push[[ALT:[0-9]+]]=, 0{{$}}
; CHECK-NEXT: return $pop[[ALT]]{{$}}
define i32 @i32_trunc_u_f64(double %x) {
  %a = fptoui double %x to i32
  ret i32 %a
}

; CHECK-LABEL: i64_trunc_s_f32:
; CHECK-NEXT: .functype i64_trunc_s_f32 (f32) -> (i64){{$}}
; CHECK-NEXT: block
; CHECK-NEXT: f32.abs $push[[ABS:[0-9]+]]=, $0{{$}}
; CHECK-NEXT: f32.const $push[[LIMIT:[0-9]+]]=, 0x1p63{{$}}
; CHECK-NEXT: f32.lt $push[[LT:[0-9]+]]=, $pop[[ABS]], $pop[[LIMIT]]{{$}}
; CHECK-NEXT: i32.eqz $push[[EQZ:[0-9]+]]=, $pop[[LT]]
; CHECK-NEXT: br_if 0, $pop[[EQZ]]{{$}}
; CHECK-NEXT: i64.trunc_f32_s $push[[NUM:[0-9]+]]=, $0{{$}}
; CHECK-NEXT: return $pop[[NUM]]{{$}}
; CHECK-NEXT: BB
; CHECK-NEXT: end_block
; CHECK-NEXT: i64.const $push[[ALT:[0-9]+]]=, -9223372036854775808{{$}}
; CHECK-NEXT: return $pop[[ALT]]{{$}}
define i64 @i64_trunc_s_f32(float %x) {
  %a = fptosi float %x to i64
  ret i64 %a
}

; CHECK-LABEL: i64_trunc_u_f32:
; CHECK-NEXT: .functype i64_trunc_u_f32 (f32) -> (i64){{$}}
; CHECK-NEXT: block
; CHECK-NEXT: f32.const $push[[LIMIT:[0-9]+]]=, 0x1p64{{$}}
; CHECK-NEXT: f32.lt $push[[LT:[0-9]+]]=, $0, $pop[[LIMIT]]{{$}}
; CHECK-NEXT: f32.const $push[[ZERO:[0-9]+]]=, 0x0p0{{$}}
; CHECK-NEXT: f32.ge $push[[GE:[0-9]+]]=, $0, $pop[[ZERO]]{{$}}
; CHECK-NEXT: i32.and $push[[AND:[0-9]+]]=, $pop[[LT]], $pop[[GE]]{{$}}
; CHECK-NEXT: i32.eqz $push[[EQZ:[0-9]+]]=, $pop[[AND]]
; CHECK-NEXT: br_if 0, $pop[[EQZ]]{{$}}
; CHECK-NEXT: i64.trunc_f32_u $push[[NUM:[0-9]+]]=, $0{{$}}
; CHECK-NEXT: return $pop[[NUM]]{{$}}
; CHECK-NEXT: BB
; CHECK-NEXT: end_block
; CHECK-NEXT: i64.const $push[[ALT:[0-9]+]]=, 0{{$}}
; CHECK-NEXT: return $pop[[ALT]]{{$}}
define i64 @i64_trunc_u_f32(float %x) {
  %a = fptoui float %x to i64
  ret i64 %a
}

; CHECK-LABEL: i64_trunc_s_f64:
; CHECK-NEXT: .functype i64_trunc_s_f64 (f64) -> (i64){{$}}
; CHECK-NEXT: block
; CHECK-NEXT: f64.abs $push[[ABS:[0-9]+]]=, $0{{$}}
; CHECK-NEXT: f64.const $push[[LIMIT:[0-9]+]]=, 0x1p63{{$}}
; CHECK-NEXT: f64.lt $push[[LT:[0-9]+]]=, $pop[[ABS]], $pop[[LIMIT]]{{$}}
; CHECK-NEXT: i32.eqz $push[[EQZ:[0-9]+]]=, $pop[[LT]]
; CHECK-NEXT: br_if 0, $pop[[EQZ]]{{$}}
; CHECK-NEXT: i64.trunc_f64_s $push[[NUM:[0-9]+]]=, $0{{$}}
; CHECK-NEXT: return $pop[[NUM]]{{$}}
; CHECK-NEXT: BB
; CHECK-NEXT: end_block
; CHECK-NEXT: i64.const $push[[ALT:[0-9]+]]=, -9223372036854775808{{$}}
; CHECK-NEXT: return $pop[[ALT]]{{$}}
define i64 @i64_trunc_s_f64(double %x) {
  %a = fptosi double %x to i64
  ret i64 %a
}

; CHECK-LABEL: i64_trunc_u_f64:
; CHECK-NEXT: .functype i64_trunc_u_f64 (f64) -> (i64){{$}}
; CHECK-NEXT: block
; CHECK-NEXT: f64.const $push[[LIMIT:[0-9]+]]=, 0x1p64{{$}}
; CHECK-NEXT: f64.lt $push[[LT:[0-9]+]]=, $0, $pop[[LIMIT]]{{$}}
; CHECK-NEXT: f64.const $push[[ZERO:[0-9]+]]=, 0x0p0{{$}}
; CHECK-NEXT: f64.ge $push[[GE:[0-9]+]]=, $0, $pop[[ZERO]]{{$}}
; CHECK-NEXT: i32.and $push[[AND:[0-9]+]]=, $pop[[LT]], $pop[[GE]]{{$}}
; CHECK-NEXT: i32.eqz $push[[EQZ:[0-9]+]]=, $pop[[AND]]
; CHECK-NEXT: br_if 0, $pop[[EQZ]]{{$}}
; CHECK-NEXT: i64.trunc_f64_u $push[[NUM:[0-9]+]]=, $0{{$}}
; CHECK-NEXT: return $pop[[NUM]]{{$}}
; CHECK-NEXT: BB
; CHECK-NEXT: end_block
; CHECK-NEXT: i64.const $push[[ALT:[0-9]+]]=, 0{{$}}
; CHECK-NEXT: return $pop[[ALT]]{{$}}
define i64 @i64_trunc_u_f64(double %x) {
  %a = fptoui double %x to i64
  ret i64 %a
}

; CHECK-LABEL: llvm_wasm_trunc_signed_i32_f32:
; CHECK-NEXT: .functype llvm_wasm_trunc_signed_i32_f32 (f32) -> (i32)
; CHECK-NEXT: i32.trunc_f32_s $push[[L0:[0-9]+]]=, $0{{$}}
; CHECK-NEXT: return $pop[[L0]]{{$}}
declare i32 @llvm.wasm.trunc.signed.i32.f32(float)
define i32 @llvm_wasm_trunc_signed_i32_f32(float %f) {
  %a = call i32 @llvm.wasm.trunc.signed.i32.f32(float %f)
  ret i32 %a
}

; CHECK-LABEL: llvm_wasm_trunc_unsigned_i32_f32:
; CHECK-NEXT: .functype llvm_wasm_trunc_unsigned_i32_f32 (f32) -> (i32)
; CHECK-NEXT: i32.trunc_f32_u $push[[L0:[0-9]+]]=, $0{{$}}
; CHECK-NEXT: return $pop[[L0]]{{$}}
declare i32 @llvm.wasm.trunc.unsigned.i32.f32(float)
define i32 @llvm_wasm_trunc_unsigned_i32_f32(float %f) {
  %a = call i32 @llvm.wasm.trunc.unsigned.i32.f32(float %f)
  ret i32 %a
}

; CHECK-LABEL: llvm_wasm_trunc_signed_i32_f64:
; CHECK-NEXT: .functype llvm_wasm_trunc_signed_i32_f64 (f64) -> (i32)
; CHECK-NEXT: i32.trunc_f64_s $push[[L0:[0-9]+]]=, $0{{$}}
; CHECK-NEXT: return $pop[[L0]]{{$}}
declare i32 @llvm.wasm.trunc.signed.i32.f64(double)
define i32 @llvm_wasm_trunc_signed_i32_f64(double %f) {
  %a = call i32 @llvm.wasm.trunc.signed.i32.f64(double %f)
  ret i32 %a
}

; CHECK-LABEL: llvm_wasm_trunc_unsigned_i32_f64:
; CHECK-NEXT: .functype llvm_wasm_trunc_unsigned_i32_f64 (f64) -> (i32)
; CHECK-NEXT: i32.trunc_f64_u $push[[L0:[0-9]+]]=, $0{{$}}
; CHECK-NEXT: return $pop[[L0]]{{$}}
declare i32 @llvm.wasm.trunc.unsigned.i32.f64(double)
define i32 @llvm_wasm_trunc_unsigned_i32_f64(double %f) {
  %a = call i32 @llvm.wasm.trunc.unsigned.i32.f64(double %f)
  ret i32 %a
}

; CHECK-LABEL: llvm_wasm_trunc_signed_i64_f32:
; CHECK-NEXT: .functype llvm_wasm_trunc_signed_i64_f32 (f32) -> (i64)
; CHECK-NEXT: i64.trunc_f32_s $push[[L0:[0-9]+]]=, $0{{$}}
; CHECK-NEXT: return $pop[[L0]]{{$}}
declare i64 @llvm.wasm.trunc.signed.i64.f32(float)
define i64 @llvm_wasm_trunc_signed_i64_f32(float %f) {
  %a = call i64 @llvm.wasm.trunc.signed.i64.f32(float %f)
  ret i64 %a
}

; CHECK-LABEL: llvm_wasm_trunc_unsigned_i64_f32:
; CHECK-NEXT: .functype llvm_wasm_trunc_unsigned_i64_f32 (f32) -> (i64)
; CHECK-NEXT: i64.trunc_f32_u $push[[L0:[0-9]+]]=, $0{{$}}
; CHECK-NEXT: return $pop[[L0]]{{$}}
declare i64 @llvm.wasm.trunc.unsigned.i64.f32(float)
define i64 @llvm_wasm_trunc_unsigned_i64_f32(float %f) {
  %a = call i64 @llvm.wasm.trunc.unsigned.i64.f32(float %f)
  ret i64 %a
}

; CHECK-LABEL: llvm_wasm_trunc_signed_i64_f64:
; CHECK-NEXT: .functype llvm_wasm_trunc_signed_i64_f64 (f64) -> (i64)
; CHECK-NEXT: i64.trunc_f64_s $push[[L0:[0-9]+]]=, $0{{$}}
; CHECK-NEXT: return $pop[[L0]]{{$}}
declare i64 @llvm.wasm.trunc.signed.i64.f64(double)
define i64 @llvm_wasm_trunc_signed_i64_f64(double %f) {
  %a = call i64 @llvm.wasm.trunc.signed.i64.f64(double %f)
  ret i64 %a
}

; CHECK-LABEL: llvm_wasm_trunc_unsigned_i64_f64:
; CHECK-NEXT: .functype llvm_wasm_trunc_unsigned_i64_f64 (f64) -> (i64)
; CHECK-NEXT: i64.trunc_f64_u $push[[L0:[0-9]+]]=, $0{{$}}
; CHECK-NEXT: return $pop[[L0]]{{$}}
declare i64 @llvm.wasm.trunc.unsigned.i64.f64(double)
define i64 @llvm_wasm_trunc_unsigned_i64_f64(double %f) {
  %a = call i64 @llvm.wasm.trunc.unsigned.i64.f64(double %f)
  ret i64 %a
}