llvm/test/CodeGen/WebAssembly/i32.ll
Dan Gohman 1a513a6964 [WebAssembly] Optimize away return instructions using fallthroughs.
This saves a small amount of code size, and is a first small step toward
passing values on the stack across block boundaries.

Differential Review: http://reviews.llvm.org/D20450


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270294 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-21 00:21:56 +00:00

256 lines
6.1 KiB
LLVM

; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt | FileCheck %s
; Test that basic 32-bit integer operations assemble as expected.
target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
target triple = "wasm32-unknown-unknown"
declare i32 @llvm.ctlz.i32(i32, i1)
declare i32 @llvm.cttz.i32(i32, i1)
declare i32 @llvm.ctpop.i32(i32)
; CHECK-LABEL: add32:
; CHECK-NEXT: .param i32, i32{{$}}
; CHECK-NEXT: .result i32{{$}}
; CHECK-NEXT: i32.add $push0=, $0, $1{{$}}
; CHECK-NEXT: return $pop0{{$}}
define i32 @add32(i32 %x, i32 %y) {
%a = add i32 %x, %y
ret i32 %a
}
; CHECK-LABEL: sub32:
; CHECK-NEXT: .param i32, i32{{$}}
; CHECK-NEXT: .result i32{{$}}
; CHECK-NEXT: i32.sub $push0=, $0, $1{{$}}
; CHECK-NEXT: return $pop0{{$}}
define i32 @sub32(i32 %x, i32 %y) {
%a = sub i32 %x, %y
ret i32 %a
}
; CHECK-LABEL: mul32:
; CHECK-NEXT: .param i32, i32{{$}}
; CHECK-NEXT: .result i32{{$}}
; CHECK-NEXT: i32.mul $push0=, $0, $1{{$}}
; CHECK-NEXT: return $pop0{{$}}
define i32 @mul32(i32 %x, i32 %y) {
%a = mul i32 %x, %y
ret i32 %a
}
; CHECK-LABEL: sdiv32:
; CHECK-NEXT: .param i32, i32{{$}}
; CHECK-NEXT: .result i32{{$}}
; CHECK-NEXT: i32.div_s $push0=, $0, $1{{$}}
; CHECK-NEXT: return $pop0{{$}}
define i32 @sdiv32(i32 %x, i32 %y) {
%a = sdiv i32 %x, %y
ret i32 %a
}
; CHECK-LABEL: udiv32:
; CHECK-NEXT: .param i32, i32{{$}}
; CHECK-NEXT: .result i32{{$}}
; CHECK-NEXT: i32.div_u $push0=, $0, $1{{$}}
; CHECK-NEXT: return $pop0{{$}}
define i32 @udiv32(i32 %x, i32 %y) {
%a = udiv i32 %x, %y
ret i32 %a
}
; CHECK-LABEL: srem32:
; CHECK-NEXT: .param i32, i32{{$}}
; CHECK-NEXT: .result i32{{$}}
; CHECK-NEXT: i32.rem_s $push0=, $0, $1{{$}}
; CHECK-NEXT: return $pop0{{$}}
define i32 @srem32(i32 %x, i32 %y) {
%a = srem i32 %x, %y
ret i32 %a
}
; CHECK-LABEL: urem32:
; CHECK-NEXT: .param i32, i32{{$}}
; CHECK-NEXT: .result i32{{$}}
; CHECK-NEXT: i32.rem_u $push0=, $0, $1{{$}}
; CHECK-NEXT: return $pop0{{$}}
define i32 @urem32(i32 %x, i32 %y) {
%a = urem i32 %x, %y
ret i32 %a
}
; CHECK-LABEL: and32:
; CHECK-NEXT: .param i32, i32{{$}}
; CHECK-NEXT: .result i32{{$}}
; CHECK-NEXT: i32.and $push0=, $0, $1{{$}}
; CHECK-NEXT: return $pop0{{$}}
define i32 @and32(i32 %x, i32 %y) {
%a = and i32 %x, %y
ret i32 %a
}
; CHECK-LABEL: or32:
; CHECK-NEXT: .param i32, i32{{$}}
; CHECK-NEXT: .result i32{{$}}
; CHECK-NEXT: i32.or $push0=, $0, $1{{$}}
; CHECK-NEXT: return $pop0{{$}}
define i32 @or32(i32 %x, i32 %y) {
%a = or i32 %x, %y
ret i32 %a
}
; CHECK-LABEL: xor32:
; CHECK-NEXT: .param i32, i32{{$}}
; CHECK-NEXT: .result i32{{$}}
; CHECK-NEXT: i32.xor $push0=, $0, $1{{$}}
; CHECK-NEXT: return $pop0{{$}}
define i32 @xor32(i32 %x, i32 %y) {
%a = xor i32 %x, %y
ret i32 %a
}
; CHECK-LABEL: shl32:
; CHECK-NEXT: .param i32, i32{{$}}
; CHECK-NEXT: .result i32{{$}}
; CHECK-NEXT: i32.shl $push0=, $0, $1{{$}}
; CHECK-NEXT: return $pop0{{$}}
define i32 @shl32(i32 %x, i32 %y) {
%a = shl i32 %x, %y
ret i32 %a
}
; CHECK-LABEL: shr32:
; CHECK-NEXT: .param i32, i32{{$}}
; CHECK-NEXT: .result i32{{$}}
; CHECK-NEXT: i32.shr_u $push0=, $0, $1{{$}}
; CHECK-NEXT: return $pop0{{$}}
define i32 @shr32(i32 %x, i32 %y) {
%a = lshr i32 %x, %y
ret i32 %a
}
; CHECK-LABEL: sar32:
; CHECK-NEXT: .param i32, i32{{$}}
; CHECK-NEXT: .result i32{{$}}
; CHECK-NEXT: i32.shr_s $push0=, $0, $1{{$}}
; CHECK-NEXT: return $pop0{{$}}
define i32 @sar32(i32 %x, i32 %y) {
%a = ashr i32 %x, %y
ret i32 %a
}
; CHECK-LABEL: clz32:
; CHECK-NEXT: .param i32{{$}}
; CHECK-NEXT: .result i32{{$}}
; CHECK-NEXT: i32.clz $push0=, $0{{$}}
; CHECK-NEXT: return $pop0{{$}}
define i32 @clz32(i32 %x) {
%a = call i32 @llvm.ctlz.i32(i32 %x, i1 false)
ret i32 %a
}
; CHECK-LABEL: clz32_zero_undef:
; CHECK-NEXT: .param i32{{$}}
; CHECK-NEXT: .result i32{{$}}
; CHECK-NEXT: i32.clz $push0=, $0{{$}}
; CHECK-NEXT: return $pop0{{$}}
define i32 @clz32_zero_undef(i32 %x) {
%a = call i32 @llvm.ctlz.i32(i32 %x, i1 true)
ret i32 %a
}
; CHECK-LABEL: ctz32:
; CHECK-NEXT: .param i32{{$}}
; CHECK-NEXT: .result i32{{$}}
; CHECK-NEXT: i32.ctz $push0=, $0{{$}}
; CHECK-NEXT: return $pop0{{$}}
define i32 @ctz32(i32 %x) {
%a = call i32 @llvm.cttz.i32(i32 %x, i1 false)
ret i32 %a
}
; CHECK-LABEL: ctz32_zero_undef:
; CHECK-NEXT: .param i32{{$}}
; CHECK-NEXT: .result i32{{$}}
; CHECK-NEXT: i32.ctz $push0=, $0{{$}}
; CHECK-NEXT: return $pop0{{$}}
define i32 @ctz32_zero_undef(i32 %x) {
%a = call i32 @llvm.cttz.i32(i32 %x, i1 true)
ret i32 %a
}
; CHECK-LABEL: popcnt32:
; CHECK-NEXT: .param i32{{$}}
; CHECK-NEXT: .result i32{{$}}
; CHECK-NEXT: i32.popcnt $push0=, $0{{$}}
; CHECK-NEXT: return $pop0{{$}}
define i32 @popcnt32(i32 %x) {
%a = call i32 @llvm.ctpop.i32(i32 %x)
ret i32 %a
}
; CHECK-LABEL: eqz32:
; CHECK-NEXT: .param i32{{$}}
; CHECK-NEXT: .result i32{{$}}
; CHECK-NEXT: i32.eqz $push0=, $0{{$}}
; CHECK-NEXT: return $pop0{{$}}
define i32 @eqz32(i32 %x) {
%a = icmp eq i32 %x, 0
%b = zext i1 %a to i32
ret i32 %b
}
; CHECK-LABEL: rotl:
; CHECK-NEXT: .param i32, i32{{$}}
; CHECK-NEXT: .result i32{{$}}
; CHECK-NEXT: i32.rotl $push0=, $0, $1
; CHECK-NEXT: return $pop0{{$}}
define i32 @rotl(i32 %x, i32 %y) {
%z = sub i32 32, %y
%b = shl i32 %x, %y
%c = lshr i32 %x, %z
%d = or i32 %b, %c
ret i32 %d
}
; CHECK-LABEL: masked_rotl:
; CHECK-NEXT: .param i32, i32{{$}}
; CHECK-NEXT: .result i32{{$}}
; CHECK-NEXT: i32.rotl $push0=, $0, $1
; CHECK-NEXT: return $pop0{{$}}
define i32 @masked_rotl(i32 %x, i32 %y) {
%a = and i32 %y, 31
%z = sub i32 32, %a
%b = shl i32 %x, %a
%c = lshr i32 %x, %z
%d = or i32 %b, %c
ret i32 %d
}
; CHECK-LABEL: rotr:
; CHECK-NEXT: .param i32, i32{{$}}
; CHECK-NEXT: .result i32{{$}}
; CHECK-NEXT: i32.rotr $push0=, $0, $1
; CHECK-NEXT: return $pop0{{$}}
define i32 @rotr(i32 %x, i32 %y) {
%z = sub i32 32, %y
%b = lshr i32 %x, %y
%c = shl i32 %x, %z
%d = or i32 %b, %c
ret i32 %d
}
; CHECK-LABEL: masked_rotr:
; CHECK-NEXT: .param i32, i32{{$}}
; CHECK-NEXT: .result i32{{$}}
; CHECK-NEXT: i32.rotr $push0=, $0, $1
; CHECK-NEXT: return $pop0{{$}}
define i32 @masked_rotr(i32 %x, i32 %y) {
%a = and i32 %y, 31
%z = sub i32 32, %a
%b = lshr i32 %x, %a
%c = shl i32 %x, %z
%d = or i32 %b, %c
ret i32 %d
}