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Diffstat (limited to 'test/CodeGen/Thumb/2009-08-20-ISelBug.ll')
-rw-r--r-- | test/CodeGen/Thumb/2009-08-20-ISelBug.ll | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/test/CodeGen/Thumb/2009-08-20-ISelBug.ll b/test/CodeGen/Thumb/2009-08-20-ISelBug.ll new file mode 100644 index 0000000..1f0a404 --- /dev/null +++ b/test/CodeGen/Thumb/2009-08-20-ISelBug.ll @@ -0,0 +1,66 @@ +; RUN: llvm-as < %s | llc -mtriple=thumbv6-apple-darwin -relocation-model=pic -disable-fp-elim -mattr=+v6 | FileCheck %s +; rdar://7157006 + +%struct.FILE = type { i8*, i32, i32, i16, i16, %struct.__sbuf, i32, i8*, i32 (i8*)*, i32 (i8*, i8*, i32)*, i64 (i8*, i64, i32)*, i32 (i8*, i8*, i32)*, %struct.__sbuf, %struct.__sFILEX*, i32, [3 x i8], [1 x i8], %struct.__sbuf, i32, i64 } +%struct.__sFILEX = type opaque +%struct.__sbuf = type { i8*, i32 } +%struct.asl_file_t = type { i32, i32, i32, %struct.file_string_t*, i64, i64, i64, i64, i64, i64, i32, %struct.FILE*, i8*, i8* } +%struct.file_string_t = type { i64, i32, %struct.file_string_t*, [0 x i8] } + +@llvm.used = appending global [1 x i8*] [i8* bitcast (i32 (%struct.asl_file_t*, i64, i64*)* @t to i8*)], section "llvm.metadata" ; <[1 x i8*]*> [#uses=0] + +define arm_apcscc i32 @t(%struct.asl_file_t* %s, i64 %off, i64* %out) nounwind optsize { +; CHECK: t: +; CHECK: adds r4, #8 +entry: + %val = alloca i64, align 4 ; <i64*> [#uses=3] + %0 = icmp eq %struct.asl_file_t* %s, null ; <i1> [#uses=1] + br i1 %0, label %bb13, label %bb1 + +bb1: ; preds = %entry + %1 = getelementptr inbounds %struct.asl_file_t* %s, i32 0, i32 11 ; <%struct.FILE**> [#uses=2] + %2 = load %struct.FILE** %1, align 4 ; <%struct.FILE*> [#uses=2] + %3 = icmp eq %struct.FILE* %2, null ; <i1> [#uses=1] + br i1 %3, label %bb13, label %bb3 + +bb3: ; preds = %bb1 + %4 = add nsw i64 %off, 8 ; <i64> [#uses=1] + %5 = getelementptr inbounds %struct.asl_file_t* %s, i32 0, i32 10 ; <i32*> [#uses=1] + %6 = load i32* %5, align 4 ; <i32> [#uses=1] + %7 = zext i32 %6 to i64 ; <i64> [#uses=1] + %8 = icmp sgt i64 %4, %7 ; <i1> [#uses=1] + br i1 %8, label %bb13, label %bb5 + +bb5: ; preds = %bb3 + %9 = call arm_apcscc i32 @fseeko(%struct.FILE* %2, i64 %off, i32 0) nounwind ; <i32> [#uses=1] + %10 = icmp eq i32 %9, 0 ; <i1> [#uses=1] + br i1 %10, label %bb7, label %bb13 + +bb7: ; preds = %bb5 + store i64 0, i64* %val, align 4 + %11 = load %struct.FILE** %1, align 4 ; <%struct.FILE*> [#uses=1] + %val8 = bitcast i64* %val to i8* ; <i8*> [#uses=1] + %12 = call arm_apcscc i32 @fread(i8* noalias %val8, i32 8, i32 1, %struct.FILE* noalias %11) nounwind ; <i32> [#uses=1] + %13 = icmp eq i32 %12, 1 ; <i1> [#uses=1] + br i1 %13, label %bb10, label %bb13 + +bb10: ; preds = %bb7 + %14 = icmp eq i64* %out, null ; <i1> [#uses=1] + br i1 %14, label %bb13, label %bb11 + +bb11: ; preds = %bb10 + %15 = load i64* %val, align 4 ; <i64> [#uses=1] + %16 = call arm_apcscc i64 @asl_core_ntohq(i64 %15) nounwind ; <i64> [#uses=1] + store i64 %16, i64* %out, align 4 + ret i32 0 + +bb13: ; preds = %bb10, %bb7, %bb5, %bb3, %bb1, %entry + %.0 = phi i32 [ 2, %entry ], [ 2, %bb1 ], [ 7, %bb3 ], [ 7, %bb5 ], [ 7, %bb7 ], [ 0, %bb10 ] ; <i32> [#uses=1] + ret i32 %.0 +} + +declare arm_apcscc i32 @fseeko(%struct.FILE* nocapture, i64, i32) nounwind + +declare arm_apcscc i32 @fread(i8* noalias nocapture, i32, i32, %struct.FILE* noalias nocapture) nounwind + +declare arm_apcscc i64 @asl_core_ntohq(i64) |