[llvm-commits] [poolalloc] r131257 - /poolalloc/trunk/test/dsa/var_arg/basic.ll

[Arushi Aggarwal]

Author: aggarwa4
Date: Thu May 12 17:35:15 2011
New Revision: 131257

URL: http://llvm.org/viewvc/llvm-project?rev=131257&view=rev
Log:
Added an example with a va_arg instruction. I had
to force the front end to generate it.

Added:
    poolalloc/trunk/test/dsa/var_arg/basic.ll

Added: poolalloc/trunk/test/dsa/var_arg/basic.ll
URL: http://llvm.org/viewvc/llvm-project/poolalloc/trunk/test/dsa/var_arg/basic.ll?rev=131257&view=auto
==============================================================================
--- poolalloc/trunk/test/dsa/var_arg/basic.ll (added)
+++ poolalloc/trunk/test/dsa/var_arg/basic.ll Thu May 12 17:35:15 2011
@@ -0,0 +1,68 @@
+;XFAIL: *
+; ModuleID = 'basic.o'
+target 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"
+target triple = "x86_64-unknown-linux-gnu"
+
+%struct.__va_list_tag = type { i32, i32, i8*, i8* }
+
+define internal i32 @get(i32 %unused, ...) nounwind {
+entry:
+  %unused_addr = alloca i32                       ; <i32*> [#uses=1]
+  %retval = alloca i32                            ; <i32*> [#uses=2]
+  %0 = alloca i32                                 ; <i32*> [#uses=2]
+  %ap = alloca [1 x %struct.__va_list_tag]        ; <[1 x %struct.__va_list_tag]*> [#uses=4]
+  %val = alloca i32*                              ; <i32**> [#uses=2]
+  %val1 = alloca i8*                              ; <i8**> [#uses=1]
+  %"alloca point" = bitcast i32 0 to i32          ; <i32> [#uses=0]
+  store i32 %unused, i32* %unused_addr
+  %ap1 = bitcast [1 x %struct.__va_list_tag]* %ap to %struct.__va_list_tag* ; <%struct.__va_list_tag*> [#uses=1]
+  %ap12 = bitcast %struct.__va_list_tag* %ap1 to i8* ; <i8*> [#uses=1]
+  call void @llvm.va_start(i8* %ap12)
+  %ap3 = bitcast [1 x %struct.__va_list_tag]* %ap to %struct.__va_list_tag* ; <%struct.__va_list_tag*> [#uses=1]
+  %1 = va_arg %struct.__va_list_tag* %ap3, i32*   ; <i32*> [#uses=1]
+  store i32* %1, i32** %val, align 8
+  %ap4 = bitcast [1 x %struct.__va_list_tag]* %ap to %struct.__va_list_tag* ; <%struct.__va_list_tag*> [#uses=1]
+  %2 = va_arg %struct.__va_list_tag* %ap4, i8*    ; <i8*> [#uses=1]
+  store i8* %2, i8** %val1, align 8
+  %ap5 = bitcast [1 x %struct.__va_list_tag]* %ap to %struct.__va_list_tag* ; <%struct.__va_list_tag*> [#uses=1]
+  %ap56 = bitcast %struct.__va_list_tag* %ap5 to i8* ; <i8*> [#uses=1]
+  call void @llvm.va_end(i8* %ap56)
+  %3 = load i32** %val, align 8                   ; <i32*> [#uses=1]
+  %4 = load i32* %3, align 4                      ; <i32> [#uses=1]
+  store i32 %4, i32* %0, align 4
+  %5 = load i32* %0, align 4                      ; <i32> [#uses=1]
+  store i32 %5, i32* %retval, align 4
+  br label %return
+
+return:                                           ; preds = %entry
+  %retval7 = load i32* %retval                    ; <i32> [#uses=1]
+  ret i32 %retval7
+}
+
+declare void @llvm.va_start(i8*) nounwind
+
+declare void @llvm.va_end(i8*) nounwind
+
+define i32 @main() nounwind {
+entry:
+  %retval = alloca i32                            ; <i32*> [#uses=2]
+  %0 = alloca i32                                 ; <i32*> [#uses=2]
+  %stack_val = alloca i32                         ; <i32*> [#uses=2]
+  %stack_val1 = alloca i8                         ; <i8*> [#uses=2]
+  %ret = alloca i32                               ; <i32*> [#uses=2]
+  %"alloca point" = bitcast i32 0 to i32          ; <i32> [#uses=0]
+  store i32 5, i32* %stack_val, align 4
+  store i8 97, i8* %stack_val1, align 1
+  %1 = call i32 (i32, ...)* @get(i32 0, i32* %stack_val, i8* %stack_val1) nounwind ; <i32> [#uses=1]
+  store i32 %1, i32* %ret, align 4
+  %2 = load i32* %ret, align 4                    ; <i32> [#uses=1]
+  %3 = sub nsw i32 %2, 5                          ; <i32> [#uses=1]
+  store i32 %3, i32* %0, align 4
+  %4 = load i32* %0, align 4                      ; <i32> [#uses=1]
+  store i32 %4, i32* %retval, align 4
+  br label %return
+
+return:                                           ; preds = %entry
+  %retval1 = load i32* %retval                    ; <i32> [#uses=1]
+  ret i32 %retval1
+}