Add instruction alignment tests to unit tests.
BUG=None
R=jvoung@chromium.org, stichnot@chromium.org
Review URL: https://codereview.chromium.org/848473002
diff --git a/src/PNaClTranslator.cpp b/src/PNaClTranslator.cpp
index 482844f..beb4e22 100644
--- a/src/PNaClTranslator.cpp
+++ b/src/PNaClTranslator.cpp
@@ -1174,18 +1174,18 @@
}
// Extracts the corresponding Alignment to use, given the AlignPower
- // (i.e. 2**AlignPower, or 0 if AlignPower == 0). InstName is the
+ // (i.e. 2**(AlignPower-1), or 0 if AlignPower == 0). InstName is the
// name of the instruction the alignment appears in.
void extractAlignment(const char *InstName, uint32_t AlignPower,
uint32_t &Alignment) {
- if (AlignPower <= AlignPowerLimit) {
+ if (AlignPower <= AlignPowerLimit + 1) {
Alignment = (1 << AlignPower) >> 1;
return;
}
std::string Buffer;
raw_string_ostream StrBuf(Buffer);
StrBuf << InstName << " alignment greater than 2**" << AlignPowerLimit
- << ". Found: 2**" << AlignPower;
+ << ". Found: 2**" << (AlignPower - 1);
Error(StrBuf.str());
// Error recover with value that is always acceptable.
Alignment = 1;
diff --git a/unittest/IceParseInstsTest.cpp b/unittest/IceParseInstsTest.cpp
index abb536c..898712a 100644
--- a/unittest/IceParseInstsTest.cpp
+++ b/unittest/IceParseInstsTest.cpp
@@ -21,6 +21,12 @@
static const uint64_t Terminator = 0x5768798008978675LL;
+// Note: alignment stored as 0 or log2(Alignment)+1.
+uint64_t getEncAlignPower(unsigned Power) {
+ return Power + 1;
+}
+uint64_t getEncAlignZero() { return 0; }
+
/// Test how we report a call arg that refers to nonexistent call argument
TEST(IceParseInstsTest, NonexistentCallArg) {
const uint64_t BitcodeRecords[] = {
@@ -42,7 +48,6 @@
0, naclbitc::BLK_CODE_EXIT, Terminator
};
-
// Show bitcode objdump for BitcodeRecords.
NaClObjDumpMunger DumpMunger(BitcodeRecords,
array_lengthof(BitcodeRecords), Terminator);
@@ -76,4 +81,421 @@
Munger.getTestResults());
}
+/// Test how we recognize alignments in alloca instructions.
+TEST(IceParseInstsTests, AllocaAlignment) {
+ const uint64_t BitcodeRecords[] = {
+ 1, naclbitc::BLK_CODE_ENTER, naclbitc::MODULE_BLOCK_ID, 2, Terminator,
+ 1, naclbitc::BLK_CODE_ENTER, naclbitc::TYPE_BLOCK_ID_NEW, 2, Terminator,
+ 3, naclbitc::TYPE_CODE_NUMENTRY, 4, Terminator,
+ 3, naclbitc::TYPE_CODE_INTEGER, 32, Terminator,
+ 3, naclbitc::TYPE_CODE_VOID, Terminator,
+ 3, naclbitc::TYPE_CODE_FUNCTION, 0, 1, 0, Terminator,
+ 3, naclbitc::TYPE_CODE_INTEGER, 8, Terminator,
+ 0, naclbitc::BLK_CODE_EXIT, Terminator,
+ 3, naclbitc::MODULE_CODE_FUNCTION, 2, 0, 0, 0, Terminator,
+ 1, naclbitc::BLK_CODE_ENTER, naclbitc::FUNCTION_BLOCK_ID, 2, Terminator,
+ 3, naclbitc::FUNC_CODE_DECLAREBLOCKS, 1, Terminator,
+ 3, naclbitc::FUNC_CODE_INST_ALLOCA, 1, getEncAlignPower(0), Terminator,
+ 3, naclbitc::FUNC_CODE_INST_RET, Terminator,
+ 0, naclbitc::BLK_CODE_EXIT, Terminator,
+ 0, naclbitc::BLK_CODE_EXIT, Terminator};
+
+ const uint64_t ReplaceIndex = 11; // index for FUNC_CODE_INST_ALLOCA
+
+ // Show text when alignment is 1.
+ NaClObjDumpMunger DumpMunger(BitcodeRecords, array_lengthof(BitcodeRecords),
+ Terminator);
+ EXPECT_TRUE(DumpMunger.runTestForAssembly("Good alloca alignment 1"));
+ EXPECT_EQ("module { // BlockID = 8\n"
+ " types { // BlockID = 17\n"
+ " count 4;\n"
+ " @t0 = i32;\n"
+ " @t1 = void;\n"
+ " @t2 = void (i32);\n"
+ " @t3 = i8;\n"
+ " }\n"
+ " define external void @f0(i32);\n"
+ " function void @f0(i32 %p0) { // BlockID = 12\n"
+ " blocks 1;\n"
+ " %b0:\n"
+ " %v0 = alloca i8, i32 %p0, align 1;\n"
+ " ret void;\n"
+ " }\n"
+ "}\n",
+ DumpMunger.getTestResults());
+
+ // Show that we can handle alignment of 1.
+ IceTest::SubzeroBitcodeMunger Munger(
+ BitcodeRecords, array_lengthof(BitcodeRecords), Terminator);
+ EXPECT_TRUE(Munger.runTest("Good alloca alignment 1"));
+
+ // Show what happens when changing alignment to 0.
+ const uint64_t Align0[] = {
+ ReplaceIndex, NaClBitcodeMunger::Replace,
+ 3, naclbitc::FUNC_CODE_INST_ALLOCA, 1, getEncAlignZero(), Terminator,
+ };
+ EXPECT_TRUE(Munger.runTest("Good alloca alignment 0", Align0,
+ array_lengthof(Align0)));
+ EXPECT_TRUE(DumpMunger.runTestForAssembly("Good alloca alignment 0", Align0,
+ array_lengthof(Align0)));
+ EXPECT_EQ(" %v0 = alloca i8, i32 %p0, align 0;\n",
+ DumpMunger.getLinesWithSubstring("alloca"));
+
+ // Show what happens when changing alignment to 2**30.
+ const uint64_t Align30[] = {
+ ReplaceIndex, NaClBitcodeMunger::Replace,
+ 3, naclbitc::FUNC_CODE_INST_ALLOCA, 1, getEncAlignPower(30), Terminator,
+ };
+ EXPECT_FALSE(Munger.runTest("Bad alloca alignment 30", Align30,
+ array_lengthof(Align30)));
+ EXPECT_EQ("Error: (62:4) Invalid function record: <19 1 31>\n",
+ Munger.getTestResults());
+
+ EXPECT_FALSE(DumpMunger.runTestForAssembly("Bad alloca alignment 30", Align30,
+ array_lengthof(Align30)));
+ EXPECT_EQ(" %v0 = alloca i8, i32 %p0, align 0;\n",
+ DumpMunger.getLinesWithSubstring("alloca"));
+ EXPECT_EQ(
+ "Error(62:4): Alignment can't be greater than 2**29. Found: 2**30\n",
+ DumpMunger.getLinesWithSubstring("Error"));
+
+ // Show what happens when changing alignment to 2**29.
+ const uint64_t Align29[] = {
+ ReplaceIndex, NaClBitcodeMunger::Replace,
+ 3, naclbitc::FUNC_CODE_INST_ALLOCA, 1, getEncAlignPower(29), Terminator,
+ };
+ EXPECT_TRUE(Munger.runTest("Good alloca alignment 29", Align29,
+ array_lengthof(Align29)));
+ EXPECT_TRUE(DumpMunger.runTestForAssembly("Good alloca alignment 29", Align29,
+ array_lengthof(Align29)));
+ EXPECT_EQ(" %v0 = alloca i8, i32 %p0, align 536870912;\n",
+ DumpMunger.getLinesWithSubstring("alloca"));
+}
+
+// Test how we recognize alignments in load i32 instructions.
+TEST(IceParseInstsTests, LoadI32Alignment) {
+ const uint64_t BitcodeRecords[] = {
+ 1, naclbitc::BLK_CODE_ENTER, naclbitc::MODULE_BLOCK_ID, 2, Terminator,
+ 1, naclbitc::BLK_CODE_ENTER, naclbitc::TYPE_BLOCK_ID_NEW, 2, Terminator,
+ 3, naclbitc::TYPE_CODE_NUMENTRY, 2, Terminator,
+ 3, naclbitc::TYPE_CODE_INTEGER, 32, Terminator,
+ 3, naclbitc::TYPE_CODE_FUNCTION, 0, 0, 0, Terminator,
+ 0, naclbitc::BLK_CODE_EXIT, Terminator,
+ 3, naclbitc::MODULE_CODE_FUNCTION, 1, 0, 0, 0, Terminator,
+ 1, naclbitc::BLK_CODE_ENTER, naclbitc::FUNCTION_BLOCK_ID, 2, Terminator,
+ 3, naclbitc::FUNC_CODE_DECLAREBLOCKS, 1, Terminator,
+ 3, naclbitc::FUNC_CODE_INST_LOAD, 1, getEncAlignPower(0), 0, Terminator,
+ 3, naclbitc::FUNC_CODE_INST_RET, 1, Terminator,
+ 0, naclbitc::BLK_CODE_EXIT, Terminator,
+ 0, naclbitc::BLK_CODE_EXIT, Terminator};
+
+ const uint64_t ReplaceIndex = 9; // index for FUNC_CODE_INST_LOAD
+
+ // Show text when alignment is 1.
+ NaClObjDumpMunger DumpMunger(BitcodeRecords, array_lengthof(BitcodeRecords),
+ Terminator);
+ EXPECT_TRUE(DumpMunger.runTestForAssembly("Good load i32 alignment 1"));
+ EXPECT_EQ("module { // BlockID = 8\n"
+ " types { // BlockID = 17\n"
+ " count 2;\n"
+ " @t0 = i32;\n"
+ " @t1 = i32 (i32);\n"
+ " }\n"
+ " define external i32 @f0(i32);\n"
+ " function i32 @f0(i32 %p0) { // BlockID = 12\n"
+ " blocks 1;\n"
+ " %b0:\n"
+ " %v0 = load i32* %p0, align 1;\n"
+ " ret i32 %v0;\n"
+ " }\n"
+ "}\n",
+ DumpMunger.getTestResults());
+ IceTest::SubzeroBitcodeMunger Munger(
+ BitcodeRecords, array_lengthof(BitcodeRecords), Terminator);
+ EXPECT_TRUE(Munger.runTest("Good load i32 alignment 1"));
+
+ // Show what happens when changing alignment to 0.
+ const uint64_t Align0[] = {
+ ReplaceIndex, NaClBitcodeMunger::Replace,
+ 3, naclbitc::FUNC_CODE_INST_LOAD, 1, getEncAlignZero(), 0, Terminator,
+ };
+ EXPECT_FALSE(Munger.runTest("Bad load i32 alignment 0", Align0,
+ array_lengthof(Align0)));
+ EXPECT_EQ("Error: (58:4) Invalid function record: <20 1 0 0>\n",
+ Munger.getTestResults());
+ EXPECT_FALSE(DumpMunger.runTestForAssembly("Bad load i32 alignment 0", Align0,
+ array_lengthof(Align0)));
+ EXPECT_EQ(" %v0 = load i32* %p0, align 0;\n"
+ "Error(58:4): load: Illegal alignment for i32. Expects: 1\n",
+ DumpMunger.getLinesWithSubstring("load"));
+
+ // Show what happens when changing alignment to 4.
+ const uint64_t Align4[] = {
+ ReplaceIndex, NaClBitcodeMunger::Replace,
+ 3, naclbitc::FUNC_CODE_INST_LOAD, 1, getEncAlignPower(2), 0, Terminator,
+ };
+ EXPECT_FALSE(Munger.runTest("Bad load i32 alignment 4", Align4,
+ array_lengthof(Align4)));
+ EXPECT_EQ("Error: (58:4) Invalid function record: <20 1 3 0>\n",
+ Munger.getTestResults());
+ EXPECT_FALSE(DumpMunger.runTestForAssembly("Bad load i32 alignment 4", Align4,
+ array_lengthof(Align4)));
+ EXPECT_EQ(" %v0 = load i32* %p0, align 4;\n"
+ "Error(58:4): load: Illegal alignment for i32. Expects: 1\n",
+ DumpMunger.getLinesWithSubstring("load"));
+
+ // Show what happens when changing alignment to 2**29.
+ const uint64_t Align29[] = {
+ ReplaceIndex, NaClBitcodeMunger::Replace,
+ 3, naclbitc::FUNC_CODE_INST_LOAD, 1, getEncAlignPower(29), 0, Terminator,
+ };
+ EXPECT_FALSE(Munger.runTest("Bad load i32 alignment 29", Align29,
+ array_lengthof(Align29)));
+ EXPECT_EQ("Error: (58:4) Invalid function record: <20 1 30 0>\n",
+ Munger.getTestResults());
+ EXPECT_FALSE(DumpMunger.runTestForAssembly("Bad load i32 alignment 29",
+ Align29, array_lengthof(Align29)));
+ EXPECT_EQ(" %v0 = load i32* %p0, align 536870912;\n"
+ "Error(58:4): load: Illegal alignment for i32. Expects: 1\n",
+ DumpMunger.getLinesWithSubstring("load"));
+
+ // Show what happens when changing alignment to 2**30.
+ const uint64_t Align30[] = {
+ ReplaceIndex, NaClBitcodeMunger::Replace,
+ 3, naclbitc::FUNC_CODE_INST_LOAD, 1, getEncAlignPower(30), 0, Terminator,
+ };
+ EXPECT_FALSE(Munger.runTest("Bad load i32 alignment 30", Align30,
+ array_lengthof(Align30)));
+ EXPECT_EQ("Error: (58:4) Invalid function record: <20 1 31 0>\n",
+ Munger.getTestResults());
+ EXPECT_FALSE(DumpMunger.runTestForAssembly("Bad load i32 alignment 30",
+ Align30, array_lengthof(Align30)));
+ EXPECT_EQ(" %v0 = load i32* %p0, align 0;\n"
+ "Error(58:4): load: Illegal alignment for i32. Expects: 1\n",
+ DumpMunger.getLinesWithSubstring("load"));
+}
+
+// Test how we recognize alignments in load float instructions.
+TEST(IceParseInstsTests, LoadFloatAlignment) {
+ const uint64_t BitcodeRecords[] = {
+ 1, naclbitc::BLK_CODE_ENTER, naclbitc::MODULE_BLOCK_ID, 2, Terminator,
+ 1, naclbitc::BLK_CODE_ENTER, naclbitc::TYPE_BLOCK_ID_NEW, 2, Terminator,
+ 3, naclbitc::TYPE_CODE_NUMENTRY, 3, Terminator,
+ 3, naclbitc::TYPE_CODE_FLOAT, Terminator,
+ 3, naclbitc::TYPE_CODE_INTEGER, 32, Terminator,
+ 3, naclbitc::TYPE_CODE_FUNCTION, 0, 0, 1, Terminator,
+ 0, naclbitc::BLK_CODE_EXIT, Terminator,
+ 3, naclbitc::MODULE_CODE_FUNCTION, 2, 0, 0, 0, Terminator,
+ 1, naclbitc::BLK_CODE_ENTER, naclbitc::FUNCTION_BLOCK_ID, 2, Terminator,
+ 3, naclbitc::FUNC_CODE_DECLAREBLOCKS, 1, Terminator,
+ 3, naclbitc::FUNC_CODE_INST_LOAD, 1, getEncAlignPower(0), 0, Terminator,
+ 3, naclbitc::FUNC_CODE_INST_RET, 1, Terminator,
+ 0, naclbitc::BLK_CODE_EXIT, Terminator,
+ 0, naclbitc::BLK_CODE_EXIT, Terminator};
+
+ const uint64_t ReplaceIndex = 10; // index for FUNC_CODE_INST_LOAD
+
+ // Show text when alignment is 1.
+ NaClObjDumpMunger DumpMunger(BitcodeRecords, array_lengthof(BitcodeRecords),
+ Terminator);
+ EXPECT_TRUE(DumpMunger.runTestForAssembly("Good load float alignment 1"));
+ EXPECT_EQ("module { // BlockID = 8\n"
+ " types { // BlockID = 17\n"
+ " count 3;\n"
+ " @t0 = float;\n"
+ " @t1 = i32;\n"
+ " @t2 = float (i32);\n"
+ " }\n"
+ " define external float @f0(i32);\n"
+ " function float @f0(i32 %p0) { // BlockID = 12\n"
+ " blocks 1;\n"
+ " %b0:\n"
+ " %v0 = load float* %p0, align 1;\n"
+ " ret float %v0;\n"
+ " }\n"
+ "}\n",
+ DumpMunger.getTestResults());
+ IceTest::SubzeroBitcodeMunger Munger(
+ BitcodeRecords, array_lengthof(BitcodeRecords), Terminator);
+ EXPECT_TRUE(Munger.runTest("Good load float alignment 1"));
+
+ // Show what happens when changing alignment to 0.
+ const uint64_t Align0[] = {
+ ReplaceIndex, NaClBitcodeMunger::Replace,
+ 3, naclbitc::FUNC_CODE_INST_LOAD, 1, getEncAlignZero(), 0, Terminator,
+ };
+ EXPECT_FALSE(Munger.runTest("Bad load float alignment 0", Align0,
+ array_lengthof(Align0)));
+ EXPECT_EQ("Error: (58:4) Invalid function record: <20 1 0 0>\n",
+ Munger.getTestResults());
+ EXPECT_FALSE(DumpMunger.runTestForAssembly("Bad load float alignment 0",
+ Align0, array_lengthof(Align0)));
+ EXPECT_EQ(
+ " %v0 = load float* %p0, align 0;\n"
+ "Error(58:4): load: Illegal alignment for float. Expects: 1 or 4\n",
+ DumpMunger.getLinesWithSubstring("load"));
+
+ // Show what happens when changing alignment to 4.
+ const uint64_t Align4[] = {
+ ReplaceIndex, NaClBitcodeMunger::Replace,
+ 3, naclbitc::FUNC_CODE_INST_LOAD, 1, getEncAlignPower(2), 0, Terminator,
+ };
+ EXPECT_TRUE(Munger.runTest("Good load float alignment 4", Align4,
+ array_lengthof(Align4)));
+ EXPECT_TRUE(DumpMunger.runTestForAssembly("Good load float alignment 4",
+ Align4, array_lengthof(Align4)));
+ EXPECT_EQ(" %v0 = load float* %p0, align 4;\n",
+ DumpMunger.getLinesWithSubstring("load"));
+
+ const uint64_t Align29[] = {
+ ReplaceIndex, NaClBitcodeMunger::Replace,
+ 3, naclbitc::FUNC_CODE_INST_LOAD, 1, getEncAlignPower(29), 0, Terminator,
+ };
+ EXPECT_FALSE(Munger.runTest("Bad load float alignment 29", Align29,
+ array_lengthof(Align29)));
+ EXPECT_EQ("Error: (58:4) Invalid function record: <20 1 30 0>\n",
+ Munger.getTestResults());
+ EXPECT_FALSE(DumpMunger.runTestForAssembly("Bad load float alignment 29",
+ Align29, array_lengthof(Align29)));
+ EXPECT_EQ(
+ " %v0 = load float* %p0, align 536870912;\n"
+ "Error(58:4): load: Illegal alignment for float. Expects: 1 or 4\n",
+ DumpMunger.getLinesWithSubstring("load"));
+
+ // Show what happens when changing alignment to 2**30.
+ const uint64_t Align30[] = {
+ ReplaceIndex, NaClBitcodeMunger::Replace,
+ 3, naclbitc::FUNC_CODE_INST_LOAD, 1, getEncAlignPower(30), 0, Terminator,
+ };
+ EXPECT_FALSE(Munger.runTest("Bad load float alignment 30", Align30,
+ array_lengthof(Align30)));
+ EXPECT_EQ("Error: (58:4) Invalid function record: <20 1 31 0>\n",
+ Munger.getTestResults());
+ EXPECT_FALSE(DumpMunger.runTestForAssembly("Bad load float alignment 30",
+ Align30, array_lengthof(Align30)));
+ EXPECT_EQ(
+ " %v0 = load float* %p0, align 0;\n"
+ "Error(58:4): load: Illegal alignment for float. Expects: 1 or 4\n",
+ DumpMunger.getLinesWithSubstring("load"));
+}
+
+// Test how we recognize alignments in store instructions.
+TEST(NaClParseInstsTests, StoreAlignment) {
+ const uint64_t BitcodeRecords[] = {
+ 1, naclbitc::BLK_CODE_ENTER, naclbitc::MODULE_BLOCK_ID, 2, Terminator,
+ 1, naclbitc::BLK_CODE_ENTER, naclbitc::TYPE_BLOCK_ID_NEW, 2, Terminator,
+ 3, naclbitc::TYPE_CODE_NUMENTRY, 3, Terminator,
+ 3, naclbitc::TYPE_CODE_FLOAT, Terminator,
+ 3, naclbitc::TYPE_CODE_INTEGER, 32, Terminator,
+ 3, naclbitc::TYPE_CODE_FUNCTION, 0, 0, 1, 0, Terminator,
+ 0, naclbitc::BLK_CODE_EXIT, Terminator,
+ 3, naclbitc::MODULE_CODE_FUNCTION, 2, 0, 0, 0, Terminator,
+ 1, naclbitc::BLK_CODE_ENTER, naclbitc::FUNCTION_BLOCK_ID, 2, Terminator,
+ 3, naclbitc::FUNC_CODE_DECLAREBLOCKS, 1, Terminator,
+ 3, naclbitc::FUNC_CODE_INST_STORE, 2, 1, getEncAlignPower(0), Terminator,
+ 3, naclbitc::FUNC_CODE_INST_RET, 1, Terminator,
+ 0, naclbitc::BLK_CODE_EXIT, Terminator,
+ 0, naclbitc::BLK_CODE_EXIT, Terminator};
+
+ const uint64_t ReplaceIndex = 10; // index for FUNC_CODE_INST_STORE
+
+ // Show text when alignment is 1.
+ NaClObjDumpMunger DumpMunger(BitcodeRecords, array_lengthof(BitcodeRecords),
+ Terminator);
+ EXPECT_TRUE(DumpMunger.runTestForAssembly("Good Store Alignment 1"));
+ EXPECT_EQ("module { // BlockID = 8\n"
+ " types { // BlockID = 17\n"
+ " count 3;\n"
+ " @t0 = float;\n"
+ " @t1 = i32;\n"
+ " @t2 = float (i32, float);\n"
+ " }\n"
+ " define external float @f0(i32, float);\n"
+ " function float @f0(i32 %p0, float %p1) { // BlockID = 12\n"
+ " blocks 1;\n"
+ " %b0:\n"
+ " store float %p1, float* %p0, align 1;\n"
+ " ret float %p1;\n"
+ " }\n"
+ "}\n",
+ DumpMunger.getTestResults());
+ IceTest::SubzeroBitcodeMunger Munger(
+ BitcodeRecords, array_lengthof(BitcodeRecords), Terminator);
+ EXPECT_TRUE(Munger.runTest("Good store alignment"));
+
+ // Show what happens when changing alignment to 0.
+ const uint64_t Align0[] = {
+ ReplaceIndex, NaClBitcodeMunger::Replace,
+ 3, naclbitc::FUNC_CODE_INST_STORE, 2, 1, getEncAlignZero(), Terminator,
+ };
+ EXPECT_FALSE(
+ Munger.runTest("Bad store alignment 0", Align0, array_lengthof(Align0)));
+ EXPECT_EQ("Error: (62:4) Invalid function record: <24 2 1 0>\n",
+ Munger.getTestResults());
+ EXPECT_FALSE(DumpMunger.runTestForAssembly("Bad store alignment 0", Align0,
+ array_lengthof(Align0)));
+ EXPECT_EQ(
+ " store float %p1, float* %p0, align 0;\n"
+ "Error(62:4): store: Illegal alignment for float. Expects: 1 or 4\n",
+ DumpMunger.getLinesWithSubstring("store"));
+
+ // Show what happens when changing alignment to 4.
+ const uint64_t Align4[] = {
+ ReplaceIndex, NaClBitcodeMunger::Replace,
+ 3, naclbitc::FUNC_CODE_INST_STORE, 2, 1, getEncAlignPower(2), Terminator,
+ };
+ EXPECT_TRUE(
+ Munger.runTest("Bad store alignment 4", Align4, array_lengthof(Align4)));
+ EXPECT_TRUE(DumpMunger.runTestForAssembly("Good store alignment 4", Align4,
+ array_lengthof(Align4)));
+
+ // Show what happens when changing alignment to 8.
+ const uint64_t Align8[] = {
+ ReplaceIndex, NaClBitcodeMunger::Replace,
+ 3, naclbitc::FUNC_CODE_INST_STORE, 2, 1, getEncAlignPower(3), Terminator,
+ };
+ EXPECT_FALSE(
+ Munger.runTest("Bad store alignment 8", Align8, array_lengthof(Align8)));
+ EXPECT_EQ("Error: (62:4) Invalid function record: <24 2 1 4>\n",
+ Munger.getTestResults());
+ EXPECT_FALSE(DumpMunger.runTestForAssembly("Bad store alignment 8", Align8,
+ array_lengthof(Align8)));
+ EXPECT_EQ(
+ " store float %p1, float* %p0, align 8;\n"
+ "Error(62:4): store: Illegal alignment for float. Expects: 1 or 4\n",
+ DumpMunger.getLinesWithSubstring("store"));
+
+ // Show what happens when changing alignment to 2**29.
+ const uint64_t Align29[] = {
+ ReplaceIndex, NaClBitcodeMunger::Replace,
+ 3, naclbitc::FUNC_CODE_INST_STORE, 2, 1, getEncAlignPower(29), Terminator,
+ };
+ EXPECT_FALSE(Munger.runTest("Bad store alignment 29", Align29,
+ array_lengthof(Align29)));
+ EXPECT_EQ("Error: (62:4) Invalid function record: <24 2 1 30>\n",
+ Munger.getTestResults());
+ EXPECT_FALSE(DumpMunger.runTestForAssembly("Bad store alignment 29", Align29,
+ array_lengthof(Align29)));
+ EXPECT_EQ(
+ " store float %p1, float* %p0, align 536870912;\n"
+ "Error(62:4): store: Illegal alignment for float. Expects: 1 or 4\n",
+ DumpMunger.getLinesWithSubstring("store"));
+
+ const uint64_t Align30[] = {
+ ReplaceIndex, NaClBitcodeMunger::Replace,
+ // Note: alignment stored as 0 or log2(Alignment)+1.
+ 3, naclbitc::FUNC_CODE_INST_STORE, 2, 1, getEncAlignPower(30), Terminator,
+ };
+ EXPECT_FALSE(Munger.runTest("Bad store alignment 30", Align30,
+ array_lengthof(Align30)));
+ EXPECT_EQ("Error: (62:4) Invalid function record: <24 2 1 31>\n",
+ Munger.getTestResults());
+ EXPECT_FALSE(DumpMunger.runTestForAssembly("Bad Store alignment 30", Align30,
+ array_lengthof(Align30)));
+ EXPECT_EQ(
+ " store float %p1, float* %p0, align 0;\n"
+ "Error(62:4): store: Illegal alignment for float. Expects: 1 or 4\n",
+ DumpMunger.getLinesWithSubstring("store"));
+}
+
} // end of anonymous namespace
