35 lines
1.5 KiB
LLVM
35 lines
1.5 KiB
LLVM
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
||
|
|
;RUN: opt -S -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -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
|
||
|
|
}
|