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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 22; RUN: opt -S -passes=instcombine < %s | FileCheck %s3 4; Instcombine should preserve metadata and alignment while5; folding a bitcast into a store.6 7target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"8 9%struct.A = type { ptr }10 11@G = external constant [5 x ptr]12 13define void @foo(i32 %x, ptr %p) nounwind {14; CHECK-LABEL: define void @foo15; CHECK-SAME: (i32 [[X:%.*]], ptr [[P:%.*]]) #[[ATTR0:[0-9]+]] {16; CHECK-NEXT: entry:17; CHECK-NEXT: store i32 [[X]], ptr [[P]], align 16, !noalias !0, !llvm.access.group [[ACC_GRP3:![0-9]+]]18; CHECK-NEXT: ret void19;20entry:21 %x.cast = bitcast i32 %x to float22 store float %x.cast, ptr %p, align 16, !noalias !0, !llvm.access.group !323 ret void24}25 26; Check instcombine doesn't try and fold the following bitcast into the store.27; This transformation would not be safe since we would need to use addrspacecast28; and addrspacecast is not guaranteed to be a no-op cast.29 30define void @bar(ptr addrspace(1) %a, ptr %b) nounwind {31; CHECK-LABEL: define void @bar32; CHECK-SAME: (ptr addrspace(1) [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {33; CHECK-NEXT: entry:34; CHECK-NEXT: store ptr addrspace(1) [[A]], ptr [[B]], align 835; CHECK-NEXT: ret void36;37entry:38 store ptr addrspace(1) %a, ptr %b39 ret void40}41 42; Check that we don't combine the bitcast into the store. This would create a43; bitcast of the swifterror which is invalid.44 45%swift.error = type opaque46define void @swifterror_store(ptr %x, ptr swifterror %err) {47; CHECK-LABEL: define void @swifterror_store48; CHECK-SAME: (ptr [[X:%.*]], ptr swifterror [[ERR:%.*]]) {49; CHECK-NEXT: entry:50; CHECK-NEXT: store ptr [[X]], ptr [[ERR]], align 851; CHECK-NEXT: ret void52;53entry:54 store ptr %x, ptr %err55 ret void56}57 58define void @ppcf128_ones_store(ptr %dest) {59; CHECK-LABEL: define void @ppcf128_ones_store60; CHECK-SAME: (ptr [[DEST:%.*]]) {61; CHECK-NEXT: entry:62; CHECK-NEXT: store ppc_fp128 0xMFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF, ptr [[DEST]], align 1663; CHECK-NEXT: ret void64;65entry:66 %int = or i128 0, 340282366920938463463374607431768211455 ; 128 ones67 %val = bitcast i128 %int to ppc_fp12868 store ppc_fp128 %val, ptr %dest, align 1669 ret void70}71 72!0 = !{!1}73!1 = !{!1, !2}74!2 = !{!2}75!3 = !{}76