; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt -loop-idiom -mtriple=riscv32 -mattr=+zbb -S < %s | FileCheck %s --check-prefixes=CPOP ; RUN: opt -loop-idiom -mtriple=riscv64 -mattr=+zbb -S < %s | FileCheck %s --check-prefixes=CPOP ; RUN: opt -loop-idiom -mtriple=riscv32 -S < %s | FileCheck %s --check-prefixes=NOCPOP ; RUN: opt -loop-idiom -mtriple=riscv64 -S < %s | FileCheck %s --check-prefixes=NOCPOP ; Mostly copied from AMDGPU version. ;To recognize this pattern: ;int popcount(unsigned long long a) { ; int c = 0; ; while (a) { ; c++; ; a &= a - 1; ; } ; return c; ;} ; define i32 @popcount_i64(i64 %a) nounwind uwtable readnone ssp { ; CPOP-LABEL: @popcount_i64( ; CPOP-NEXT: entry: ; CPOP-NEXT: [[TMP0:%.*]] = call i64 @llvm.ctpop.i64(i64 [[A:%.*]]) ; CPOP-NEXT: [[TMP1:%.*]] = trunc i64 [[TMP0]] to i32 ; CPOP-NEXT: [[TMP2:%.*]] = icmp eq i32 [[TMP1]], 0 ; CPOP-NEXT: br i1 [[TMP2]], label [[WHILE_END:%.*]], label [[WHILE_BODY_PREHEADER:%.*]] ; CPOP: while.body.preheader: ; CPOP-NEXT: br label [[WHILE_BODY:%.*]] ; CPOP: while.body: ; CPOP-NEXT: [[TCPHI:%.*]] = phi i32 [ [[TMP1]], [[WHILE_BODY_PREHEADER]] ], [ [[TCDEC:%.*]], [[WHILE_BODY]] ] ; CPOP-NEXT: [[C_05:%.*]] = phi i32 [ [[INC:%.*]], [[WHILE_BODY]] ], [ 0, [[WHILE_BODY_PREHEADER]] ] ; CPOP-NEXT: [[A_ADDR_04:%.*]] = phi i64 [ [[AND:%.*]], [[WHILE_BODY]] ], [ [[A]], [[WHILE_BODY_PREHEADER]] ] ; CPOP-NEXT: [[INC]] = add nsw i32 [[C_05]], 1 ; CPOP-NEXT: [[SUB:%.*]] = add i64 [[A_ADDR_04]], -1 ; CPOP-NEXT: [[AND]] = and i64 [[SUB]], [[A_ADDR_04]] ; CPOP-NEXT: [[TCDEC]] = sub nsw i32 [[TCPHI]], 1 ; CPOP-NEXT: [[TOBOOL:%.*]] = icmp sle i32 [[TCDEC]], 0 ; CPOP-NEXT: br i1 [[TOBOOL]], label [[WHILE_END_LOOPEXIT:%.*]], label [[WHILE_BODY]] ; CPOP: while.end.loopexit: ; CPOP-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[TMP1]], [[WHILE_BODY]] ] ; CPOP-NEXT: br label [[WHILE_END]] ; CPOP: while.end: ; CPOP-NEXT: [[C_0_LCSSA:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[INC_LCSSA]], [[WHILE_END_LOOPEXIT]] ] ; CPOP-NEXT: ret i32 [[C_0_LCSSA]] ; ; NOCPOP-LABEL: @popcount_i64( ; NOCPOP-NEXT: entry: ; NOCPOP-NEXT: [[TOBOOL3:%.*]] = icmp eq i64 [[A:%.*]], 0 ; NOCPOP-NEXT: br i1 [[TOBOOL3]], label [[WHILE_END:%.*]], label [[WHILE_BODY_PREHEADER:%.*]] ; NOCPOP: while.body.preheader: ; NOCPOP-NEXT: br label [[WHILE_BODY:%.*]] ; NOCPOP: while.body: ; NOCPOP-NEXT: [[C_05:%.*]] = phi i32 [ [[INC:%.*]], [[WHILE_BODY]] ], [ 0, [[WHILE_BODY_PREHEADER]] ] ; NOCPOP-NEXT: [[A_ADDR_04:%.*]] = phi i64 [ [[AND:%.*]], [[WHILE_BODY]] ], [ [[A]], [[WHILE_BODY_PREHEADER]] ] ; NOCPOP-NEXT: [[INC]] = add nsw i32 [[C_05]], 1 ; NOCPOP-NEXT: [[SUB:%.*]] = add i64 [[A_ADDR_04]], -1 ; NOCPOP-NEXT: [[AND]] = and i64 [[SUB]], [[A_ADDR_04]] ; NOCPOP-NEXT: [[TOBOOL:%.*]] = icmp eq i64 [[AND]], 0 ; NOCPOP-NEXT: br i1 [[TOBOOL]], label [[WHILE_END_LOOPEXIT:%.*]], label [[WHILE_BODY]] ; NOCPOP: while.end.loopexit: ; NOCPOP-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ] ; NOCPOP-NEXT: br label [[WHILE_END]] ; NOCPOP: while.end: ; NOCPOP-NEXT: [[C_0_LCSSA:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[INC_LCSSA]], [[WHILE_END_LOOPEXIT]] ] ; NOCPOP-NEXT: ret i32 [[C_0_LCSSA]] ; entry: %tobool3 = icmp eq i64 %a, 0 br i1 %tobool3, label %while.end, label %while.body while.body: ; preds = %entry, %while.body %c.05 = phi i32 [ %inc, %while.body ], [ 0, %entry ] %a.addr.04 = phi i64 [ %and, %while.body ], [ %a, %entry ] %inc = add nsw i32 %c.05, 1 %sub = add i64 %a.addr.04, -1 %and = and i64 %sub, %a.addr.04 %tobool = icmp eq i64 %and, 0 br i1 %tobool, label %while.end, label %while.body while.end: ; preds = %while.body, %entry %c.0.lcssa = phi i32 [ 0, %entry ], [ %inc, %while.body ] ret i32 %c.0.lcssa } define i32 @popcount_i32(i32 %a) nounwind uwtable readnone ssp { ; CPOP-LABEL: @popcount_i32( ; CPOP-NEXT: entry: ; CPOP-NEXT: [[TMP0:%.*]] = call i32 @llvm.ctpop.i32(i32 [[A:%.*]]) ; CPOP-NEXT: [[TMP1:%.*]] = icmp eq i32 [[TMP0]], 0 ; CPOP-NEXT: br i1 [[TMP1]], label [[WHILE_END:%.*]], label [[WHILE_BODY_PREHEADER:%.*]] ; CPOP: while.body.preheader: ; CPOP-NEXT: br label [[WHILE_BODY:%.*]] ; CPOP: while.body: ; CPOP-NEXT: [[TCPHI:%.*]] = phi i32 [ [[TMP0]], [[WHILE_BODY_PREHEADER]] ], [ [[TCDEC:%.*]], [[WHILE_BODY]] ] ; CPOP-NEXT: [[C_05:%.*]] = phi i32 [ [[INC:%.*]], [[WHILE_BODY]] ], [ 0, [[WHILE_BODY_PREHEADER]] ] ; CPOP-NEXT: [[A_ADDR_04:%.*]] = phi i32 [ [[AND:%.*]], [[WHILE_BODY]] ], [ [[A]], [[WHILE_BODY_PREHEADER]] ] ; CPOP-NEXT: [[INC]] = add nsw i32 [[C_05]], 1 ; CPOP-NEXT: [[SUB:%.*]] = add i32 [[A_ADDR_04]], -1 ; CPOP-NEXT: [[AND]] = and i32 [[SUB]], [[A_ADDR_04]] ; CPOP-NEXT: [[TCDEC]] = sub nsw i32 [[TCPHI]], 1 ; CPOP-NEXT: [[TOBOOL:%.*]] = icmp sle i32 [[TCDEC]], 0 ; CPOP-NEXT: br i1 [[TOBOOL]], label [[WHILE_END_LOOPEXIT:%.*]], label [[WHILE_BODY]] ; CPOP: while.end.loopexit: ; CPOP-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[TMP0]], [[WHILE_BODY]] ] ; CPOP-NEXT: br label [[WHILE_END]] ; CPOP: while.end: ; CPOP-NEXT: [[C_0_LCSSA:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[INC_LCSSA]], [[WHILE_END_LOOPEXIT]] ] ; CPOP-NEXT: ret i32 [[C_0_LCSSA]] ; ; NOCPOP-LABEL: @popcount_i32( ; NOCPOP-NEXT: entry: ; NOCPOP-NEXT: [[TOBOOL3:%.*]] = icmp eq i32 [[A:%.*]], 0 ; NOCPOP-NEXT: br i1 [[TOBOOL3]], label [[WHILE_END:%.*]], label [[WHILE_BODY_PREHEADER:%.*]] ; NOCPOP: while.body.preheader: ; NOCPOP-NEXT: br label [[WHILE_BODY:%.*]] ; NOCPOP: while.body: ; NOCPOP-NEXT: [[C_05:%.*]] = phi i32 [ [[INC:%.*]], [[WHILE_BODY]] ], [ 0, [[WHILE_BODY_PREHEADER]] ] ; NOCPOP-NEXT: [[A_ADDR_04:%.*]] = phi i32 [ [[AND:%.*]], [[WHILE_BODY]] ], [ [[A]], [[WHILE_BODY_PREHEADER]] ] ; NOCPOP-NEXT: [[INC]] = add nsw i32 [[C_05]], 1 ; NOCPOP-NEXT: [[SUB:%.*]] = add i32 [[A_ADDR_04]], -1 ; NOCPOP-NEXT: [[AND]] = and i32 [[SUB]], [[A_ADDR_04]] ; NOCPOP-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[AND]], 0 ; NOCPOP-NEXT: br i1 [[TOBOOL]], label [[WHILE_END_LOOPEXIT:%.*]], label [[WHILE_BODY]] ; NOCPOP: while.end.loopexit: ; NOCPOP-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ] ; NOCPOP-NEXT: br label [[WHILE_END]] ; NOCPOP: while.end: ; NOCPOP-NEXT: [[C_0_LCSSA:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[INC_LCSSA]], [[WHILE_END_LOOPEXIT]] ] ; NOCPOP-NEXT: ret i32 [[C_0_LCSSA]] ; entry: %tobool3 = icmp eq i32 %a, 0 br i1 %tobool3, label %while.end, label %while.body while.body: ; preds = %entry, %while.body %c.05 = phi i32 [ %inc, %while.body ], [ 0, %entry ] %a.addr.04 = phi i32 [ %and, %while.body ], [ %a, %entry ] %inc = add nsw i32 %c.05, 1 %sub = add i32 %a.addr.04, -1 %and = and i32 %sub, %a.addr.04 %tobool = icmp eq i32 %and, 0 br i1 %tobool, label %while.end, label %while.body while.end: ; preds = %while.body, %entry %c.0.lcssa = phi i32 [ 0, %entry ], [ %inc, %while.body ] ret i32 %c.0.lcssa } define i32 @popcount_i128(i128 %a) nounwind uwtable readnone ssp { ; CPOP-LABEL: @popcount_i128( ; CPOP-NEXT: entry: ; CPOP-NEXT: [[TMP0:%.*]] = call i128 @llvm.ctpop.i128(i128 [[A:%.*]]) ; CPOP-NEXT: [[TMP1:%.*]] = trunc i128 [[TMP0]] to i32 ; CPOP-NEXT: [[TMP2:%.*]] = icmp eq i32 [[TMP1]], 0 ; CPOP-NEXT: br i1 [[TMP2]], label [[WHILE_END:%.*]], label [[WHILE_BODY_PREHEADER:%.*]] ; CPOP: while.body.preheader: ; CPOP-NEXT: br label [[WHILE_BODY:%.*]] ; CPOP: while.body: ; CPOP-NEXT: [[TCPHI:%.*]] = phi i32 [ [[TMP1]], [[WHILE_BODY_PREHEADER]] ], [ [[TCDEC:%.*]], [[WHILE_BODY]] ] ; CPOP-NEXT: [[C_05:%.*]] = phi i32 [ [[INC:%.*]], [[WHILE_BODY]] ], [ 0, [[WHILE_BODY_PREHEADER]] ] ; CPOP-NEXT: [[A_ADDR_04:%.*]] = phi i128 [ [[AND:%.*]], [[WHILE_BODY]] ], [ [[A]], [[WHILE_BODY_PREHEADER]] ] ; CPOP-NEXT: [[INC]] = add nsw i32 [[C_05]], 1 ; CPOP-NEXT: [[SUB:%.*]] = add i128 [[A_ADDR_04]], -1 ; CPOP-NEXT: [[AND]] = and i128 [[SUB]], [[A_ADDR_04]] ; CPOP-NEXT: [[TCDEC]] = sub nsw i32 [[TCPHI]], 1 ; CPOP-NEXT: [[TOBOOL:%.*]] = icmp sle i32 [[TCDEC]], 0 ; CPOP-NEXT: br i1 [[TOBOOL]], label [[WHILE_END_LOOPEXIT:%.*]], label [[WHILE_BODY]] ; CPOP: while.end.loopexit: ; CPOP-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[TMP1]], [[WHILE_BODY]] ] ; CPOP-NEXT: br label [[WHILE_END]] ; CPOP: while.end: ; CPOP-NEXT: [[C_0_LCSSA:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[INC_LCSSA]], [[WHILE_END_LOOPEXIT]] ] ; CPOP-NEXT: ret i32 [[C_0_LCSSA]] ; ; NOCPOP-LABEL: @popcount_i128( ; NOCPOP-NEXT: entry: ; NOCPOP-NEXT: [[TOBOOL3:%.*]] = icmp eq i128 [[A:%.*]], 0 ; NOCPOP-NEXT: br i1 [[TOBOOL3]], label [[WHILE_END:%.*]], label [[WHILE_BODY_PREHEADER:%.*]] ; NOCPOP: while.body.preheader: ; NOCPOP-NEXT: br label [[WHILE_BODY:%.*]] ; NOCPOP: while.body: ; NOCPOP-NEXT: [[C_05:%.*]] = phi i32 [ [[INC:%.*]], [[WHILE_BODY]] ], [ 0, [[WHILE_BODY_PREHEADER]] ] ; NOCPOP-NEXT: [[A_ADDR_04:%.*]] = phi i128 [ [[AND:%.*]], [[WHILE_BODY]] ], [ [[A]], [[WHILE_BODY_PREHEADER]] ] ; NOCPOP-NEXT: [[INC]] = add nsw i32 [[C_05]], 1 ; NOCPOP-NEXT: [[SUB:%.*]] = add i128 [[A_ADDR_04]], -1 ; NOCPOP-NEXT: [[AND]] = and i128 [[SUB]], [[A_ADDR_04]] ; NOCPOP-NEXT: [[TOBOOL:%.*]] = icmp eq i128 [[AND]], 0 ; NOCPOP-NEXT: br i1 [[TOBOOL]], label [[WHILE_END_LOOPEXIT:%.*]], label [[WHILE_BODY]] ; NOCPOP: while.end.loopexit: ; NOCPOP-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ] ; NOCPOP-NEXT: br label [[WHILE_END]] ; NOCPOP: while.end: ; NOCPOP-NEXT: [[C_0_LCSSA:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[INC_LCSSA]], [[WHILE_END_LOOPEXIT]] ] ; NOCPOP-NEXT: ret i32 [[C_0_LCSSA]] ; entry: %tobool3 = icmp eq i128 %a, 0 br i1 %tobool3, label %while.end, label %while.body while.body: ; preds = %entry, %while.body %c.05 = phi i32 [ %inc, %while.body ], [ 0, %entry ] %a.addr.04 = phi i128 [ %and, %while.body ], [ %a, %entry ] %inc = add nsw i32 %c.05, 1 %sub = add i128 %a.addr.04, -1 %and = and i128 %sub, %a.addr.04 %tobool = icmp eq i128 %and, 0 br i1 %tobool, label %while.end, label %while.body while.end: ; preds = %while.body, %entry %c.0.lcssa = phi i32 [ 0, %entry ], [ %inc, %while.body ] ret i32 %c.0.lcssa } ; To recognize this pattern: ;int popcount(unsigned long long a, int mydata1, int mydata2) { ; int c = 0; ; while (a) { ; c++; ; a &= a - 1; ; mydata1 *= c; ; mydata2 *= (int)a; ; } ; return c + mydata1 + mydata2; ;} define i32 @popcount2(i64 %a, i32 %mydata1, i32 %mydata2) nounwind uwtable readnone ssp { ; CPOP-LABEL: @popcount2( ; CPOP-NEXT: entry: ; CPOP-NEXT: [[TMP0:%.*]] = call i64 @llvm.ctpop.i64(i64 [[A:%.*]]) ; CPOP-NEXT: [[TMP1:%.*]] = trunc i64 [[TMP0]] to i32 ; CPOP-NEXT: [[TMP2:%.*]] = icmp eq i32 [[TMP1]], 0 ; CPOP-NEXT: br i1 [[TMP2]], label [[WHILE_END:%.*]], label [[WHILE_BODY_PREHEADER:%.*]] ; CPOP: while.body.preheader: ; CPOP-NEXT: br label [[WHILE_BODY:%.*]] ; CPOP: while.body: ; CPOP-NEXT: [[TCPHI:%.*]] = phi i32 [ [[TMP1]], [[WHILE_BODY_PREHEADER]] ], [ [[TCDEC:%.*]], [[WHILE_BODY]] ] ; CPOP-NEXT: [[C_013:%.*]] = phi i32 [ [[INC:%.*]], [[WHILE_BODY]] ], [ 0, [[WHILE_BODY_PREHEADER]] ] ; CPOP-NEXT: [[MYDATA2_ADDR_012:%.*]] = phi i32 [ [[MUL1:%.*]], [[WHILE_BODY]] ], [ [[MYDATA2:%.*]], [[WHILE_BODY_PREHEADER]] ] ; CPOP-NEXT: [[MYDATA1_ADDR_011:%.*]] = phi i32 [ [[MUL:%.*]], [[WHILE_BODY]] ], [ [[MYDATA1:%.*]], [[WHILE_BODY_PREHEADER]] ] ; CPOP-NEXT: [[A_ADDR_010:%.*]] = phi i64 [ [[AND:%.*]], [[WHILE_BODY]] ], [ [[A]], [[WHILE_BODY_PREHEADER]] ] ; CPOP-NEXT: [[INC]] = add nsw i32 [[C_013]], 1 ; CPOP-NEXT: [[SUB:%.*]] = add i64 [[A_ADDR_010]], -1 ; CPOP-NEXT: [[AND]] = and i64 [[SUB]], [[A_ADDR_010]] ; CPOP-NEXT: [[MUL]] = mul nsw i32 [[INC]], [[MYDATA1_ADDR_011]] ; CPOP-NEXT: [[CONV:%.*]] = trunc i64 [[AND]] to i32 ; CPOP-NEXT: [[MUL1]] = mul nsw i32 [[CONV]], [[MYDATA2_ADDR_012]] ; CPOP-NEXT: [[TCDEC]] = sub nsw i32 [[TCPHI]], 1 ; CPOP-NEXT: [[TOBOOL:%.*]] = icmp sle i32 [[TCDEC]], 0 ; CPOP-NEXT: br i1 [[TOBOOL]], label [[WHILE_END_LOOPEXIT:%.*]], label [[WHILE_BODY]] ; CPOP: while.end.loopexit: ; CPOP-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[TMP1]], [[WHILE_BODY]] ] ; CPOP-NEXT: [[MUL_LCSSA:%.*]] = phi i32 [ [[MUL]], [[WHILE_BODY]] ] ; CPOP-NEXT: [[MUL1_LCSSA:%.*]] = phi i32 [ [[MUL1]], [[WHILE_BODY]] ] ; CPOP-NEXT: br label [[WHILE_END]] ; CPOP: while.end: ; CPOP-NEXT: [[C_0_LCSSA:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[INC_LCSSA]], [[WHILE_END_LOOPEXIT]] ] ; CPOP-NEXT: [[MYDATA2_ADDR_0_LCSSA:%.*]] = phi i32 [ [[MYDATA2]], [[ENTRY]] ], [ [[MUL1_LCSSA]], [[WHILE_END_LOOPEXIT]] ] ; CPOP-NEXT: [[MYDATA1_ADDR_0_LCSSA:%.*]] = phi i32 [ [[MYDATA1]], [[ENTRY]] ], [ [[MUL_LCSSA]], [[WHILE_END_LOOPEXIT]] ] ; CPOP-NEXT: [[ADD:%.*]] = add i32 [[MYDATA2_ADDR_0_LCSSA]], [[MYDATA1_ADDR_0_LCSSA]] ; CPOP-NEXT: [[ADD2:%.*]] = add i32 [[ADD]], [[C_0_LCSSA]] ; CPOP-NEXT: ret i32 [[ADD2]] ; ; NOCPOP-LABEL: @popcount2( ; NOCPOP-NEXT: entry: ; NOCPOP-NEXT: [[TOBOOL9:%.*]] = icmp eq i64 [[A:%.*]], 0 ; NOCPOP-NEXT: br i1 [[TOBOOL9]], label [[WHILE_END:%.*]], label [[WHILE_BODY_PREHEADER:%.*]] ; NOCPOP: while.body.preheader: ; NOCPOP-NEXT: br label [[WHILE_BODY:%.*]] ; NOCPOP: while.body: ; NOCPOP-NEXT: [[C_013:%.*]] = phi i32 [ [[INC:%.*]], [[WHILE_BODY]] ], [ 0, [[WHILE_BODY_PREHEADER]] ] ; NOCPOP-NEXT: [[MYDATA2_ADDR_012:%.*]] = phi i32 [ [[MUL1:%.*]], [[WHILE_BODY]] ], [ [[MYDATA2:%.*]], [[WHILE_BODY_PREHEADER]] ] ; NOCPOP-NEXT: [[MYDATA1_ADDR_011:%.*]] = phi i32 [ [[MUL:%.*]], [[WHILE_BODY]] ], [ [[MYDATA1:%.*]], [[WHILE_BODY_PREHEADER]] ] ; NOCPOP-NEXT: [[A_ADDR_010:%.*]] = phi i64 [ [[AND:%.*]], [[WHILE_BODY]] ], [ [[A]], [[WHILE_BODY_PREHEADER]] ] ; NOCPOP-NEXT: [[INC]] = add nsw i32 [[C_013]], 1 ; NOCPOP-NEXT: [[SUB:%.*]] = add i64 [[A_ADDR_010]], -1 ; NOCPOP-NEXT: [[AND]] = and i64 [[SUB]], [[A_ADDR_010]] ; NOCPOP-NEXT: [[MUL]] = mul nsw i32 [[INC]], [[MYDATA1_ADDR_011]] ; NOCPOP-NEXT: [[CONV:%.*]] = trunc i64 [[AND]] to i32 ; NOCPOP-NEXT: [[MUL1]] = mul nsw i32 [[CONV]], [[MYDATA2_ADDR_012]] ; NOCPOP-NEXT: [[TOBOOL:%.*]] = icmp eq i64 [[AND]], 0 ; NOCPOP-NEXT: br i1 [[TOBOOL]], label [[WHILE_END_LOOPEXIT:%.*]], label [[WHILE_BODY]] ; NOCPOP: while.end.loopexit: ; NOCPOP-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ] ; NOCPOP-NEXT: [[MUL_LCSSA:%.*]] = phi i32 [ [[MUL]], [[WHILE_BODY]] ] ; NOCPOP-NEXT: [[MUL1_LCSSA:%.*]] = phi i32 [ [[MUL1]], [[WHILE_BODY]] ] ; NOCPOP-NEXT: br label [[WHILE_END]] ; NOCPOP: while.end: ; NOCPOP-NEXT: [[C_0_LCSSA:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[INC_LCSSA]], [[WHILE_END_LOOPEXIT]] ] ; NOCPOP-NEXT: [[MYDATA2_ADDR_0_LCSSA:%.*]] = phi i32 [ [[MYDATA2]], [[ENTRY]] ], [ [[MUL1_LCSSA]], [[WHILE_END_LOOPEXIT]] ] ; NOCPOP-NEXT: [[MYDATA1_ADDR_0_LCSSA:%.*]] = phi i32 [ [[MYDATA1]], [[ENTRY]] ], [ [[MUL_LCSSA]], [[WHILE_END_LOOPEXIT]] ] ; NOCPOP-NEXT: [[ADD:%.*]] = add i32 [[MYDATA2_ADDR_0_LCSSA]], [[MYDATA1_ADDR_0_LCSSA]] ; NOCPOP-NEXT: [[ADD2:%.*]] = add i32 [[ADD]], [[C_0_LCSSA]] ; NOCPOP-NEXT: ret i32 [[ADD2]] ; entry: %tobool9 = icmp eq i64 %a, 0 br i1 %tobool9, label %while.end, label %while.body while.body: ; preds = %entry, %while.body %c.013 = phi i32 [ %inc, %while.body ], [ 0, %entry ] %mydata2.addr.012 = phi i32 [ %mul1, %while.body ], [ %mydata2, %entry ] %mydata1.addr.011 = phi i32 [ %mul, %while.body ], [ %mydata1, %entry ] %a.addr.010 = phi i64 [ %and, %while.body ], [ %a, %entry ] %inc = add nsw i32 %c.013, 1 %sub = add i64 %a.addr.010, -1 %and = and i64 %sub, %a.addr.010 %mul = mul nsw i32 %inc, %mydata1.addr.011 %conv = trunc i64 %and to i32 %mul1 = mul nsw i32 %conv, %mydata2.addr.012 %tobool = icmp eq i64 %and, 0 br i1 %tobool, label %while.end, label %while.body while.end: ; preds = %while.body, %entry %c.0.lcssa = phi i32 [ 0, %entry ], [ %inc, %while.body ] %mydata2.addr.0.lcssa = phi i32 [ %mydata2, %entry ], [ %mul1, %while.body ] %mydata1.addr.0.lcssa = phi i32 [ %mydata1, %entry ], [ %mul, %while.body ] %add = add i32 %mydata2.addr.0.lcssa, %mydata1.addr.0.lcssa %add2 = add i32 %add, %c.0.lcssa ret i32 %add2 }