| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ;RUN: opt -S -simplifycfg -mtriple=arm < %s | FileCheck %s |
| target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64" |
| |
| define arm_aapcscc i32 @select_trunc_i64(i32 %a, i32 %b) { |
| ; CHECK-LABEL: @select_trunc_i64( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CONV:%.*]] = sext i32 [[A:%.*]] to i64 |
| ; CHECK-NEXT: [[CONV1:%.*]] = sext i32 [[B:%.*]] to i64 |
| ; CHECK-NEXT: [[ADD:%.*]] = add nsw i64 [[CONV1]], [[CONV]] |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i64 [[ADD]], 2147483647 |
| ; CHECK-NEXT: [[TMP0:%.*]] = icmp sgt i64 [[ADD]], -2147483648 |
| ; CHECK-NEXT: [[COND:%.*]] = select i1 [[TMP0]], i64 [[ADD]], i64 -2147483648 |
| ; CHECK-NEXT: [[EXTRACT_T:%.*]] = trunc i64 [[COND]] to i32 |
| ; CHECK-NEXT: [[COND8_OFF0:%.*]] = select i1 [[CMP]], i32 2147483647, i32 [[EXTRACT_T]] |
| ; CHECK-NEXT: ret i32 [[COND8_OFF0]] |
| ; |
| entry: |
| %conv = sext i32 %a to i64 |
| %conv1 = sext i32 %b to i64 |
| %add = add nsw i64 %conv1, %conv |
| %cmp = icmp sgt i64 %add, 2147483647 |
| br i1 %cmp, label %cond.end7, label %cond.false |
| |
| cond.false: ; preds = %entry |
| %0 = icmp sgt i64 %add, -2147483648 |
| %cond = select i1 %0, i64 %add, i64 -2147483648 |
| %extract.t = trunc i64 %cond to i32 |
| br label %cond.end7 |
| |
| cond.end7: ; preds = %cond.false, %entry |
| %cond8.off0 = phi i32 [ 2147483647, %entry ], [ %extract.t, %cond.false ] |
| ret i32 %cond8.off0 |
| } |