| ; PR28852: Check machine code sinking is not stopped by SUBREG_TO_REG. |
| ; RUN: llc < %s | FileCheck %s |
| |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| ; CHECK: foo |
| ; CHECK-NOT: imull |
| ; CHECK: retq |
| ; CHECK: imull |
| |
| define void @foo(i64 %value, i32 %kLengthBits, i32* nocapture %bits, i64* nocapture %bit_buffer_64, i32 %x) local_unnamed_addr { |
| entry: |
| %mul = mul i32 %x, %kLengthBits |
| %add = add i32 %mul, 3 |
| %conv = zext i32 %add to i64 |
| %mul2 = mul nuw nsw i64 %conv, 5 |
| %sub = sub i64 64, %value |
| %conv4 = trunc i64 %sub to i32 |
| %tmp0 = load i32, i32* %bits, align 4 |
| %cmp = icmp ult i32 %tmp0, %conv4 |
| br i1 %cmp, label %if.then, label %if.end, !prof !0 |
| |
| if.then: ; preds = %entry |
| %add7 = add i64 %mul2, %value |
| %tmp1 = load i64, i64* %bit_buffer_64, align 8 |
| %add8 = add i64 %add7, %tmp1 |
| store i64 %add8, i64* %bit_buffer_64, align 8 |
| %conv9 = trunc i64 %mul2 to i32 |
| store i32 %conv9, i32* %bits, align 4 |
| br label %if.end |
| |
| if.end: ; preds = %if.then, %entry |
| ret void |
| } |
| |
| !0 = !{!"branch_weights", i32 1, i32 2000} |
