From 0e5665bf0314b609bfa08bb64bad834e7678c8a6 Mon Sep 17 00:00:00 2001
From: Scott Michel <scottm@aero.org>
Date: Wed, 19 Dec 2007 21:17:42 +0000
Subject: [PATCH] CellSPU testcase, extract_elt.ll: extract vector element.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45219 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/CellSPU/SPUISelLowering.cpp |   7 +-
 test/CodeGen/CellSPU/extract_elt.ll    | 175 +++++++++++++++++++++++++
 2 files changed, 180 insertions(+), 2 deletions(-)
 create mode 100644 test/CodeGen/CellSPU/extract_elt.ll

diff --git a/lib/Target/CellSPU/SPUISelLowering.cpp b/lib/Target/CellSPU/SPUISelLowering.cpp
index 7d221877512..2ab4841c64e 100644
--- a/lib/Target/CellSPU/SPUISelLowering.cpp
+++ b/lib/Target/CellSPU/SPUISelLowering.cpp
@@ -2101,7 +2101,7 @@ static SDOperand LowerEXTRACT_VECTOR_ELT(SDOperand Op, SelectionDAG &DAG) {
   }
 
   // Need to generate shuffle mask and extract:
-  int prefslot_begin, prefslot_end;
+  int prefslot_begin = -1, prefslot_end = -1;
   int elt_byte = EltNo * MVT::getSizeInBits(VT) / 8;
 
   switch (VT) {
@@ -2123,6 +2123,9 @@ static SDOperand LowerEXTRACT_VECTOR_ELT(SDOperand Op, SelectionDAG &DAG) {
   }
   }
 
+  assert(prefslot_begin != -1 && prefslot_end != -1 &&
+	 "LowerEXTRACT_VECTOR_ELT: preferred slots uninitialized");
+
   for (int i = 0; i < 16; ++i) {
     // zero fill uppper part of preferred slot, don't care about the
     // other slots:
@@ -2134,7 +2137,7 @@ static SDOperand LowerEXTRACT_VECTOR_ELT(SDOperand Op, SelectionDAG &DAG) {
 	 ? 0x80
 	 : elt_byte + (i - prefslot_begin));
 
-      ShufMask[i] = DAG.getConstant(mask_val, MVT::i16);
+      ShufMask[i] = DAG.getConstant(mask_val, MVT::i8);
     } else 
       ShufMask[i] = ShufMask[i % (prefslot_end + 1)];
   }
diff --git a/test/CodeGen/CellSPU/extract_elt.ll b/test/CodeGen/CellSPU/extract_elt.ll
new file mode 100644
index 00000000000..ab485a81fd3
--- /dev/null
+++ b/test/CodeGen/CellSPU/extract_elt.ll
@@ -0,0 +1,175 @@
+; RUN: llvm-as -o - %s | llc -march=cellspu > %t1.s
+; RUN: llvm-as -o - %s | llc -march=cellspu -mattr=large_mem > %t2.s
+; RUN: grep shufb %t1.s | count 27 &&
+; RUN: grep   lqa %t1.s | count 27 &&
+; RUN: grep   lqx %t2.s | count 27 &&
+; RUN: grep space %t1.s | count 8 &&
+; RUN: grep  byte %t1.s | count 424
+
+define i32 @i32_extract_0(<4 x i32> %v) {
+entry:
+  %a = extractelement <4 x i32> %v, i32 0
+  ret i32 %a
+}
+
+define i32 @i32_extract_1(<4 x i32> %v) {
+entry:
+  %a = extractelement <4 x i32> %v, i32 1
+  ret i32 %a
+}
+
+define i32 @i32_extract_2(<4 x i32> %v) {
+entry:
+  %a = extractelement <4 x i32> %v, i32 2
+  ret i32 %a
+}
+
+define i32 @i32_extract_3(<4 x i32> %v) {
+entry:
+  %a = extractelement <4 x i32> %v, i32 3
+  ret i32 %a
+}
+
+define i16 @i16_extract_0(<8 x i16> %v) {
+entry:
+  %a = extractelement <8 x i16> %v, i32 0
+  ret i16 %a
+}
+
+define i16 @i16_extract_1(<8 x i16> %v) {
+entry:
+  %a = extractelement <8 x i16> %v, i32 1
+  ret i16 %a
+}
+
+define i16 @i16_extract_2(<8 x i16> %v) {
+entry:
+  %a = extractelement <8 x i16> %v, i32 2
+  ret i16 %a
+}
+
+define i16 @i16_extract_3(<8 x i16> %v) {
+entry:
+  %a = extractelement <8 x i16> %v, i32 3
+  ret i16 %a
+}
+
+define i16 @i16_extract_4(<8 x i16> %v) {
+entry:
+  %a = extractelement <8 x i16> %v, i32 4
+  ret i16 %a
+}
+
+define i16 @i16_extract_5(<8 x i16> %v) {
+entry:
+  %a = extractelement <8 x i16> %v, i32 5
+  ret i16 %a
+}
+
+define i16 @i16_extract_6(<8 x i16> %v) {
+entry:
+  %a = extractelement <8 x i16> %v, i32 6
+  ret i16 %a
+}
+
+define i16 @i16_extract_7(<8 x i16> %v) {
+entry:
+  %a = extractelement <8 x i16> %v, i32 7
+  ret i16 %a
+}
+
+define i8 @i8_extract_0(<16 x i8> %v) {
+entry:
+  %a = extractelement <16 x i8> %v, i32 0
+  ret i8 %a
+}
+
+define i8 @i8_extract_1(<16 x i8> %v) {
+entry:
+  %a = extractelement <16 x i8> %v, i32 1
+  ret i8 %a
+}
+
+define i8 @i8_extract_2(<16 x i8> %v) {
+entry:
+  %a = extractelement <16 x i8> %v, i32 2
+  ret i8 %a
+}
+
+define i8 @i8_extract_3(<16 x i8> %v) {
+entry:
+  %a = extractelement <16 x i8> %v, i32 3
+  ret i8 %a
+}
+
+define i8 @i8_extract_4(<16 x i8> %v) {
+entry:
+  %a = extractelement <16 x i8> %v, i32 4
+  ret i8 %a
+}
+
+define i8 @i8_extract_5(<16 x i8> %v) {
+entry:
+  %a = extractelement <16 x i8> %v, i32 5
+  ret i8 %a
+}
+
+define i8 @i8_extract_6(<16 x i8> %v) {
+entry:
+  %a = extractelement <16 x i8> %v, i32 6
+  ret i8 %a
+}
+
+define i8 @i8_extract_7(<16 x i8> %v) {
+entry:
+  %a = extractelement <16 x i8> %v, i32 7
+  ret i8 %a
+}
+
+define i8 @i8_extract_8(<16 x i8> %v) {
+entry:
+  %a = extractelement <16 x i8> %v, i32 8
+  ret i8 %a
+}
+
+define i8 @i8_extract_9(<16 x i8> %v) {
+entry:
+  %a = extractelement <16 x i8> %v, i32 9
+  ret i8 %a
+}
+
+define i8 @i8_extract_10(<16 x i8> %v) {
+entry:
+  %a = extractelement <16 x i8> %v, i32 10
+  ret i8 %a
+}
+
+define i8 @i8_extract_11(<16 x i8> %v) {
+entry:
+  %a = extractelement <16 x i8> %v, i32 11
+  ret i8 %a
+}
+
+define i8 @i8_extract_12(<16 x i8> %v) {
+entry:
+  %a = extractelement <16 x i8> %v, i32 12
+  ret i8 %a
+}
+
+define i8 @i8_extract_13(<16 x i8> %v) {
+entry:
+  %a = extractelement <16 x i8> %v, i32 13
+  ret i8 %a
+}
+
+define i8 @i8_extract_14(<16 x i8> %v) {
+entry:
+  %a = extractelement <16 x i8> %v, i32 14
+  ret i8 %a
+}
+
+define i8 @i8_extract_15(<16 x i8> %v) {
+entry:
+  %a = extractelement <16 x i8> %v, i32 15
+  ret i8 %a
+}
-- 
2.34.1