1 ; PR28852: Check machine code sinking is not stopped by SUBREG_TO_REG. 2 ; RUN: llc < %s | FileCheck %s 3 4 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 5 target triple = "x86_64-unknown-linux-gnu" 6 7 ; CHECK: foo 8 ; CHECK-NOT: imull 9 ; CHECK: retq 10 ; CHECK: imull 11 12 define void @foo(i64 %value, i32 %kLengthBits, i32* nocapture %bits, i64* nocapture %bit_buffer_64, i32 %x) local_unnamed_addr { 13 entry: 14 %mul = mul i32 %x, %kLengthBits 15 %add = add i32 %mul, 3 16 %conv = zext i32 %add to i64 17 %mul2 = mul nuw nsw i64 %conv, 5 18 %sub = sub i64 64, %value 19 %conv4 = trunc i64 %sub to i32 20 %tmp0 = load i32, i32* %bits, align 4 21 %cmp = icmp ult i32 %tmp0, %conv4 22 br i1 %cmp, label %if.then, label %if.end, !prof !0 23 24 if.then: ; preds = %entry 25 %add7 = add i64 %mul2, %value 26 %tmp1 = load i64, i64* %bit_buffer_64, align 8 27 %add8 = add i64 %add7, %tmp1 28 store i64 %add8, i64* %bit_buffer_64, align 8 29 %conv9 = trunc i64 %mul2 to i32 30 store i32 %conv9, i32* %bits, align 4 31 br label %if.end 32 33 if.end: ; preds = %if.then, %entry 34 ret void 35 } 36 37 !0 = !{!"branch_weights", i32 1, i32 2000} 38
