1 ; RUN: llc -march=hexagon -debug-only=isel < %s 2>&1 | FileCheck %s
4 ; Check that we generate 'cmpb.gtu' instruction for a byte comparision
5 ; The "Optimized Lowered Selection" converts the "ugt with #40" to
6 ; "ult with #41". The immediate value should be decremented to #40
7 ; with the selected cmpb.gtu pattern
8 ; CHECK: setcc{{.*}}41{{.*}}setult
9 ; CHECK: A4_cmpbgtui{{.*}}40
11 @glob = common global i8 0, align 1
13 define i32 @cmpgtudec(i32 %a0, i32 %a1) #0 {
15 %v3 = xor i32 %a1, %a0
16 %v4 = and i32 %v3, 255
17 %v5 = icmp ugt i32 %v4, 40
18 br i1 %v5, label %b6, label %b8
21 %v7 = trunc i32 %a0 to i8
22 store i8 %v7, i8* @glob, align 1
25 b8: ; preds = %b6, %b2
26 %v9 = phi i32 [ 1, %b6 ], [ 0, %b2 ]
30 attributes #0 = { nounwind }