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For store instructions, always load first. #1731

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merged 1 commit into from
Oct 17, 2020
Merged

For store instructions, always load first. #1731

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56 changes: 56 additions & 0 deletions lib/compiler-llvm/src/translator/code.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -6286,6 +6286,13 @@ impl<'ctx, 'a> LLVMFunctionCodeGenerator<'ctx, 'a> {
offset,
4,
)?;
let dead_load = self.builder.build_load(effective_address, "");
self.annotate_user_memaccess(
memory_index,
memarg,
1,
dead_load.as_instruction_value().unwrap(),
)?;
let store = self.builder.build_store(effective_address, value);
self.annotate_user_memaccess(memory_index, memarg, 1, store)?;
}
Expand All @@ -6300,6 +6307,13 @@ impl<'ctx, 'a> LLVMFunctionCodeGenerator<'ctx, 'a> {
offset,
8,
)?;
let dead_load = self.builder.build_load(effective_address, "");
self.annotate_user_memaccess(
memory_index,
memarg,
1,
dead_load.as_instruction_value().unwrap(),
)?;
let store = self.builder.build_store(effective_address, value);
self.annotate_user_memaccess(memory_index, memarg, 1, store)?;
}
Expand All @@ -6315,6 +6329,13 @@ impl<'ctx, 'a> LLVMFunctionCodeGenerator<'ctx, 'a> {
offset,
4,
)?;
let dead_load = self.builder.build_load(effective_address, "");
self.annotate_user_memaccess(
memory_index,
memarg,
1,
dead_load.as_instruction_value().unwrap(),
)?;
let store = self.builder.build_store(effective_address, v);
self.annotate_user_memaccess(memory_index, memarg, 1, store)?;
}
Expand All @@ -6330,6 +6351,13 @@ impl<'ctx, 'a> LLVMFunctionCodeGenerator<'ctx, 'a> {
offset,
8,
)?;
let dead_load = self.builder.build_load(effective_address, "");
self.annotate_user_memaccess(
memory_index,
memarg,
1,
dead_load.as_instruction_value().unwrap(),
)?;
let store = self.builder.build_store(effective_address, v);
self.annotate_user_memaccess(memory_index, memarg, 1, store)?;
}
Expand All @@ -6345,6 +6373,13 @@ impl<'ctx, 'a> LLVMFunctionCodeGenerator<'ctx, 'a> {
offset,
16,
)?;
let dead_load = self.builder.build_load(effective_address, "");
self.annotate_user_memaccess(
memory_index,
memarg,
1,
dead_load.as_instruction_value().unwrap(),
)?;
let store = self.builder.build_store(effective_address, v);
self.annotate_user_memaccess(memory_index, memarg, 1, store)?;
}
Expand Down Expand Up @@ -6603,6 +6638,13 @@ impl<'ctx, 'a> LLVMFunctionCodeGenerator<'ctx, 'a> {
offset,
1,
)?;
let dead_load = self.builder.build_load(effective_address, "");
self.annotate_user_memaccess(
memory_index,
memarg,
1,
dead_load.as_instruction_value().unwrap(),
)?;
let narrow_value =
self.builder
.build_int_truncate(value, self.intrinsics.i8_ty, "");
Expand All @@ -6620,6 +6662,13 @@ impl<'ctx, 'a> LLVMFunctionCodeGenerator<'ctx, 'a> {
offset,
2,
)?;
let dead_load = self.builder.build_load(effective_address, "");
self.annotate_user_memaccess(
memory_index,
memarg,
1,
dead_load.as_instruction_value().unwrap(),
)?;
let narrow_value =
self.builder
.build_int_truncate(value, self.intrinsics.i16_ty, "");
Expand All @@ -6637,6 +6686,13 @@ impl<'ctx, 'a> LLVMFunctionCodeGenerator<'ctx, 'a> {
offset,
4,
)?;
let dead_load = self.builder.build_load(effective_address, "");
self.annotate_user_memaccess(
memory_index,
memarg,
1,
dead_load.as_instruction_value().unwrap(),
)?;
let narrow_value =
self.builder
.build_int_truncate(value, self.intrinsics.i32_ty, "");
Expand Down