llvm-6502/test/CodeGen/AArch64/fast-isel-mul.ll
Juergen Ributzka 580875d39d [FastISel][AArch64] Simplify mul to shift when possible.
This is related to rdar://problem/18369687.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217980 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-17 20:35:41 +00:00

45 lines
1.0 KiB
LLVM

; RUN: llc -fast-isel -fast-isel-abort -verify-machineinstrs -mtriple=aarch64-apple-darwin < %s | FileCheck %s
define zeroext i8 @test_mul8(i8 %lhs, i8 %rhs) {
; CHECK-LABEL: test_mul8:
; CHECK: mul {{w[0-9]+}}, w0, w1
%1 = mul i8 %lhs, %rhs
ret i8 %1
}
define zeroext i16 @test_mul16(i16 %lhs, i16 %rhs) {
; CHECK-LABEL: test_mul16:
; CHECK: mul {{w[0-9]+}}, w0, w1
%1 = mul i16 %lhs, %rhs
ret i16 %1
}
define i32 @test_mul32(i32 %lhs, i32 %rhs) {
; CHECK-LABEL: test_mul32:
; CHECK: mul {{w[0-9]+}}, w0, w1
%1 = mul i32 %lhs, %rhs
ret i32 %1
}
define i64 @test_mul64(i64 %lhs, i64 %rhs) {
; CHECK-LABEL: test_mul64:
; CHECK: mul {{x[0-9]+}}, x0, x1
%1 = mul i64 %lhs, %rhs
ret i64 %1
}
define i32 @test_mul2shift_i32(i32 %a) {
; CHECK-LABEL: test_mul2shift_i32:
; CHECK: lsl {{w[0-9]+}}, w0, #2
%1 = mul i32 %a, 4
ret i32 %1
}
define i64 @test_mul2shift_i64(i64 %a) {
; CHECK-LABEL: test_mul2shift_i64:
; CHECK: lsl {{x[0-9]+}}, x0, #3
%1 = mul i64 %a, 8
ret i64 %1
}