1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
; NOTE: Assertions have been autogenerated by update_test_checks.py
; RUN: opt -S -passes=instsimplify < %s | FileCheck %s
target datalayout = "E-m:e-i64:64-n32:64"
target triple = "powerpc64-unknown-linux-gnu"
define zeroext i1 @_Z10isNegativemj(i64 %Val, i32 zeroext %IntegerBitWidth) {
; CHECK-LABEL: @_Z10isNegativemj(
; CHECK: [[CONV:%.*]] = zext i32 %IntegerBitWidth to i64
; CHECK-NEXT: [[SUB:%.*]] = sub i64 128, [[CONV]]
; CHECK-NEXT: [[CONV1:%.*]] = trunc i64 [[SUB]] to i32
; CHECK-NEXT: [[CONV2:%.*]] = zext i64 %Val to i128
; CHECK-NEXT: [[SH_PROM:%.*]] = zext i32 [[CONV1]] to i128
; CHECK-NEXT: [[SHL:%.*]] = shl i128 [[CONV2]], [[SH_PROM]]
; CHECK-NEXT: [[SHR:%.*]] = ashr i128 [[SHL]], [[SH_PROM]]
; CHECK-NEXT: [[CMP:%.*]] = icmp slt i128 [[SHR]], 0
; CHECK-NEXT: ret i1 [[CMP]]
;
entry:
%conv = zext i32 %IntegerBitWidth to i64
%sub = sub i64 128, %conv
%conv1 = trunc i64 %sub to i32
%conv2 = zext i64 %Val to i128
%sh_prom = zext i32 %conv1 to i128
%shl = shl i128 %conv2, %sh_prom
%shr = ashr i128 %shl, %sh_prom
%cmp = icmp slt i128 %shr, 0
ret i1 %cmp
}
|
