Files
llvm/test/CodeGen/Hexagon/mulh.ll
T
Krzysztof Parzyszek 7cc2615d1b [Hexagon] Generate multiply-high instruction in isel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305302 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-13 16:21:57 +00:00

28 lines
583 B
LLVM

; RUN: llc -march=hexagon < %s | FileCheck %s
target triple = "hexagon"
; CHECK-LABEL: danny:
; CHECK: r{{[0-9]+}} = mpy(r0,r1)
define i32 @danny(i32 %a0, i32 %a1) {
b2:
%v3 = sext i32 %a0 to i64
%v4 = sext i32 %a1 to i64
%v5 = mul nsw i64 %v3, %v4
%v6 = ashr i64 %v5, 32
%v7 = trunc i64 %v6 to i32
ret i32 %v7
}
; CHECK-LABEL: sammy:
; CHECK: r{{[0-9]+}} = mpy(r0,r1)
define i32 @sammy(i32 %a0, i32 %a1) {
b2:
%v3 = sext i32 %a0 to i64
%v4 = sext i32 %a1 to i64
%v5 = mul nsw i64 %v3, %v4
%v6 = lshr i64 %v5, 32
%v7 = trunc i64 %v6 to i32
ret i32 %v7
}