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-f80:128:128"
target triple = "i686-apple-darwin9"
-define void @test1({ x86_fp80, x86_fp80 }* sret %agg.result, x86_fp80 %z.0, x86_fp80 %z.1) nounwind {
+%0 = type { x86_fp80, x86_fp80 }
+%1 = type { i32, i32 }
+
+define void @test1(%0* sret %agg.result, x86_fp80 %z.0, x86_fp80 %z.1) nounwind {
entry:
- %tmp2 = alloca { x86_fp80, x86_fp80 } ; <{ x86_fp80, x86_fp80 }*> [#uses=1]
- %memtmp = alloca { x86_fp80, x86_fp80 }, align 16 ; <{ x86_fp80, x86_fp80 }*> [#uses=2]
- %tmp5 = fsub x86_fp80 0xK80000000000000000000, %z.1 ; <x86_fp80> [#uses=1]
- call void @ccoshl( { x86_fp80, x86_fp80 }* sret %memtmp, x86_fp80 %tmp5, x86_fp80 %z.0 ) nounwind
- %tmp219 = bitcast { x86_fp80, x86_fp80 }* %tmp2 to i8* ; <i8*> [#uses=2]
- %memtmp20 = bitcast { x86_fp80, x86_fp80 }* %memtmp to i8* ; <i8*> [#uses=1]
- call void @llvm.memcpy.i32( i8* %tmp219, i8* %memtmp20, i32 32, i32 16 )
- %agg.result21 = bitcast { x86_fp80, x86_fp80 }* %agg.result to i8* ; <i8*> [#uses=1]
- call void @llvm.memcpy.i32( i8* %agg.result21, i8* %tmp219, i32 32, i32 16 )
+ %tmp2 = alloca %0
+ %memtmp = alloca %0, align 16
+ %tmp5 = fsub x86_fp80 0xK80000000000000000000, %z.1
+ call void @ccoshl(%0* sret %memtmp, x86_fp80 %tmp5, x86_fp80 %z.0) nounwind
+ %tmp219 = bitcast %0* %tmp2 to i8*
+ %memtmp20 = bitcast %0* %memtmp to i8*
+ call void @llvm.memcpy.p0i8.p0i8.i32(i8* %tmp219, i8* %memtmp20, i32 32, i32 16, i1 false)
+ %agg.result21 = bitcast %0* %agg.result to i8*
+ call void @llvm.memcpy.p0i8.p0i8.i32(i8* %agg.result21, i8* %tmp219, i32 32, i32 16, i1 false)
+ ret void
; Check that one of the memcpy's are removed.
;; FIXME: PR 8643 We should be able to eliminate the last memcpy here.
; CHECK: call void @llvm.memcpy
; CHECK-NOT: llvm.memcpy
; CHECK: ret void
- ret void
}
-declare void @ccoshl({ x86_fp80, x86_fp80 }* sret , x86_fp80, x86_fp80) nounwind
-
-declare void @llvm.memcpy.i32(i8*, i8*, i32, i32) nounwind
+declare void @ccoshl(%0* sret , x86_fp80, x86_fp80) nounwind
; The intermediate alloca and one of the memcpy's should be eliminated, the
; other should be related with a memmove.
define void @test2(i8* %P, i8* %Q) nounwind {
- %memtmp = alloca { x86_fp80, x86_fp80 }, align 16
- %R = bitcast { x86_fp80, x86_fp80 }* %memtmp to i8*
- call void @llvm.memcpy.i32( i8* %R, i8* %P, i32 32, i32 16 )
- call void @llvm.memcpy.i32( i8* %Q, i8* %R, i32 32, i32 16 )
- ret void
+ %memtmp = alloca %0, align 16
+ %R = bitcast %0* %memtmp to i8*
+ call void @llvm.memcpy.p0i8.p0i8.i32(i8* %R, i8* %P, i32 32, i32 16, i1 false)
+ call void @llvm.memcpy.p0i8.p0i8.i32(i8* %Q, i8* %R, i32 32, i32 16, i1 false)
+ ret void
; CHECK: @test2
; CHECK-NEXT: call void @llvm.memmove{{.*}}(i8* %Q, i8* %P
-@x = external global { x86_fp80, x86_fp80 }
+@x = external global %0
-define void @test3({ x86_fp80, x86_fp80 }* noalias sret %agg.result) nounwind {
- %x.0 = alloca { x86_fp80, x86_fp80 }
- %x.01 = bitcast { x86_fp80, x86_fp80 }* %x.0 to i8*
- call void @llvm.memcpy.i32( i8* %x.01, i8* bitcast ({ x86_fp80, x86_fp80 }* @x to i8*), i32 32, i32 16 )
- %agg.result2 = bitcast { x86_fp80, x86_fp80 }* %agg.result to i8*
- call void @llvm.memcpy.i32( i8* %agg.result2, i8* %x.01, i32 32, i32 16 )
- ret void
+define void @test3(%0* noalias sret %agg.result) nounwind {
+ %x.0 = alloca %0
+ %x.01 = bitcast %0* %x.0 to i8*
+ call void @llvm.memcpy.p0i8.p0i8.i32(i8* %x.01, i8* bitcast (%0* @x to i8*), i32 32, i32 16, i1 false)
+ %agg.result2 = bitcast %0* %agg.result to i8*
+ call void @llvm.memcpy.p0i8.p0i8.i32(i8* %agg.result2, i8* %x.01, i32 32, i32 16, i1 false)
+ ret void
; CHECK: @test3
-; CHECK-NEXT: %agg.result2 = bitcast
+; CHECK-NEXT: %agg.result1 = bitcast
; CHECK-NEXT: call void @llvm.memcpy
; CHECK-NEXT: ret void
}
+
+
+; PR8644
+define void @test4(i8 *%P) {
+ %A = alloca %1
+ %a = bitcast %1* %A to i8*
+ call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* %P, i64 8, i32 4, i1 false)
+ call void @test4a(i8* byval align 1 %a)
+ ret void
+; CHECK: @test4
+; CHECK-NEXT: call void @test4a(
+}
+
+declare void @test4a(i8* byval align 1)
+declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind
+
+%struct.S = type { i128, [4 x i8]}
+
+@sS = external global %struct.S, align 16
+
+declare void @test5a(%struct.S* byval align 16) nounwind ssp
+
+
+; rdar://8713376 - This memcpy can't be eliminated.
+define i32 @test5(i32 %x) nounwind ssp {
+entry:
+ %y = alloca %struct.S, align 16
+ %tmp = bitcast %struct.S* %y to i8*
+ call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp, i8* bitcast (%struct.S* @sS to i8*), i64 32, i32 16, i1 false)
+ %a = getelementptr %struct.S* %y, i64 0, i32 1, i64 0
+ store i8 4, i8* %a
+ call void @test5a(%struct.S* byval align 16 %y)
+ ret i32 0
+ ; CHECK: @test5(
+ ; CHECK: store i8 4
+ ; CHECK: call void @test5a(%struct.S* byval align 16 %y)
+}
+
+;; Noop memcpy should be zapped.
+define void @test6(i8 *%P) {
+ call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %P, i64 8, i32 4, i1 false)
+ ret void
+; CHECK: @test6
+; CHECK-NEXT: ret void
+}
+
+
+; PR9794 - Should forward memcpy into byval argument even though the memcpy
+; isn't itself 8 byte aligned.
+%struct.p = type { i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32 }
+
+define i32 @test7(%struct.p* nocapture byval align 8 %q) nounwind ssp {
+entry:
+ %agg.tmp = alloca %struct.p, align 4
+ %tmp = bitcast %struct.p* %agg.tmp to i8*
+ %tmp1 = bitcast %struct.p* %q to i8*
+ call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp, i8* %tmp1, i64 48, i32 4, i1 false)
+ %call = call i32 @g(%struct.p* byval align 8 %agg.tmp) nounwind
+ ret i32 %call
+; CHECK: @test7
+; CHECK: call i32 @g(%struct.p* byval align 8 %q) nounwind
+}
+
+declare i32 @g(%struct.p* byval align 8)
+
+declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind
+
+; PR11142 - When looking for a memcpy-memcpy dependency, don't get stuck on
+; instructions between the memcpy's that only affect the destination pointer.
+@test8.str = internal constant [7 x i8] c"ABCDEF\00"
+
+define void @test8() {
+; CHECK: test8
+; CHECK-NOT: memcpy
+ %A = tail call i8* @malloc(i32 10)
+ %B = getelementptr inbounds i8* %A, i64 2
+ tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* %B, i8* getelementptr inbounds ([7 x i8]* @test8.str, i64 0, i64 0), i32 7, i32 1, i1 false)
+ %C = tail call i8* @malloc(i32 10)
+ %D = getelementptr inbounds i8* %C, i64 2
+ tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* %D, i8* %B, i32 7, i32 1, i1 false)
+ ret void
+; CHECK: ret void
+}
+
+declare noalias i8* @malloc(i32)
projects / oota-llvm.git / blobdiff