1 ; RUN: opt < %s -bounds-checking -S | FileCheck %s 2 3 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32-S128" 4 5 %struct.s2_packed = type <{ i64, i32, i32, i32, i16, i8 }> 6 7 ; CHECK-LABEL: @f 8 ; CHECK-NOT: trap 9 define i16 @f() { 10 entry: 11 %packed1 = alloca %struct.s2_packed, align 8 12 %gep = getelementptr inbounds %struct.s2_packed* %packed1, i32 0, i32 4 13 %ptr = bitcast i16* %gep to i32* 14 %val = load i32* %ptr, align 4 15 %valt = trunc i32 %val to i16 16 ret i16 %valt 17 } 18 19 ; CHECK-LABEL: @f 20 ; CHECK: call void @llvm.trap() 21 define i16 @f2() { 22 entry: 23 %packed1 = alloca %struct.s2_packed, align 8 24 %gep = getelementptr inbounds %struct.s2_packed* %packed1, i32 0, i32 4 25 %ptr = bitcast i16* %gep to i48* 26 %val = load i48* %ptr, align 4 27 %valt = trunc i48 %val to i16 28 ret i16 %valt 29 } 30
