1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt < %s -passes=memcpyopt,dse -S -verify-memoryssa | FileCheck %s 3; PR2077 4 5target 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" 6target triple = "i386-pc-linux-gnu" 7 8%0 = type { x86_fp80, x86_fp80 } 9 10define internal fastcc void @initialize(ptr noalias nocapture sret(%0) %agg.result) nounwind { 11; CHECK-LABEL: @initialize( 12; CHECK-NEXT: entry: 13; CHECK-NEXT: store x86_fp80 0xK00000000000000000000, ptr [[AGG_RESULT:%.*]], align 4 14; CHECK-NEXT: [[AGG_RESULT_15:%.*]] = getelementptr [[TMP0:%.*]], ptr [[AGG_RESULT]], i32 0, i32 1 15; CHECK-NEXT: store x86_fp80 0xK00000000000000000000, ptr [[AGG_RESULT_15]], align 4 16; CHECK-NEXT: ret void 17; 18entry: 19 store x86_fp80 0xK00000000000000000000, ptr %agg.result 20 %agg.result.15 = getelementptr %0, ptr %agg.result, i32 0, i32 1 21 store x86_fp80 0xK00000000000000000000, ptr %agg.result.15 22 ret void 23} 24 25declare fastcc x86_fp80 @passed_uninitialized(ptr nocapture) nounwind 26 27define fastcc void @badly_optimized() nounwind { 28; CHECK-LABEL: @badly_optimized( 29; CHECK-NEXT: entry: 30; CHECK-NEXT: [[Z:%.*]] = alloca [[TMP0:%.*]], align 8 31; CHECK-NEXT: [[TMP:%.*]] = alloca [[TMP0]], align 8 32; CHECK-NEXT: [[MEMTMP:%.*]] = alloca [[TMP0]], align 8 33; CHECK-NEXT: call fastcc void @initialize(ptr noalias sret([[TMP0]]) [[Z]]) 34; CHECK-NEXT: [[TMP5:%.*]] = call fastcc x86_fp80 @passed_uninitialized(ptr [[Z]]) 35; CHECK-NEXT: ret void 36; 37entry: 38 %z = alloca %0 39 %tmp = alloca %0 40 %memtmp = alloca %0, align 8 41 call fastcc void @initialize(ptr noalias sret(%0) %memtmp) 42 call void @llvm.memcpy.p0.p0.i32(ptr align 8 %tmp, ptr align 8 %memtmp, i32 24, i1 false) 43 call void @llvm.memcpy.p0.p0.i32(ptr align 8 %z, ptr align 8 %tmp, i32 24, i1 false) 44 %tmp5 = call fastcc x86_fp80 @passed_uninitialized(ptr %z) 45 ret void 46} 47 48declare void @llvm.memcpy.p0.p0.i32(ptr nocapture, ptr nocapture, i32, i1) nounwind 49