| ; Test three-operand multiplication instructions on z14. | |
| ; | |
| ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z14 | FileCheck %s | |
| ; Check MSRKC. | |
| define i32 @f1(i32 %dummy, i32 %a, i32 %b) { | |
| ; CHECK-LABEL: f1: | |
| ; CHECK: msrkc %r2, %r3, %r4 | |
| ; CHECK: br %r14 | |
| %mul = mul i32 %a, %b | |
| ret i32 %mul | |
| } | |
| ; Check MSGRKC. | |
| define i64 @f2(i64 %dummy, i64 %a, i64 %b) { | |
| ; CHECK-LABEL: f2: | |
| ; CHECK: msgrkc %r2, %r3, %r4 | |
| ; CHECK: br %r14 | |
| %mul = mul i64 %a, %b | |
| ret i64 %mul | |
| } | |
| ; Verify that we still use MSGFR for i32->i64 multiplies. | |
| define i64 @f3(i64 %a, i32 %b) { | |
| ; CHECK-LABEL: f3: | |
| ; CHECK: msgfr %r2, %r3 | |
| ; CHECK: br %r14 | |
| %bext = sext i32 %b to i64 | |
| %mul = mul i64 %a, %bext | |
| ret i64 %mul | |
| } | |