| ; 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} |