When method returns char, byte, boolean or short then int value should
be pushed on mimic stack. Primitive types listed above do not occur
in java stack. They are always converted to int implicitly.
This caused failed assertion for the following method:
jato: jit/typeconv-bc.c:56: convert_truncation: Assertion failed
`from_expression->vm_type == J_INT'.
[main] TRACE: org/jpc/emulator/pci/AbstractPCIDevice.configReadWord(I)S
[main] Length: 30
[main] Code:
[main] [ 0000 ] 2a 1b 04 60 b6 00 0b 93 3d 1c 10 08 78 93 3d 1c
[main] [ 0016 ] 11 00 ff 2a 1b b6 00 0b 7e 80 93 3d 1c ac
[main]
[main]
[main] Code:
[main] [ 0 ] 0x2a aload_0
[main] [ 1 ] 0x1b iload_1
[main] [ 2 ] 0x04 iconst_1
[main] [ 3 ] 0x60 iadd
[main] [ 4 ] 0xb6 invokevirtual 0x00 0x0b //
org/jpc/emulator/pci/AbstractPCIDevice.configReadByte(I)B
[main] [ 7 ] 0x93 i2s
Signed-off-by: Tomek Grabiec <tgrab...@gmail.com>
---
jit/expression.c | 8 +++++++-
1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/jit/expression.c b/jit/expression.c
index 12fe984..78f3256 100644
--- a/jit/expression.c
+++ b/jit/expression.c
@@ -426,7 +426,13 @@ struct expression *instance_field_expr(enum vm_type
vm_type,
static struct expression *
__invoke_expr(enum expression_type expr_type, enum vm_type vm_type, struct
vm_method *target_method)
{
- struct expression *expr = alloc_expression(expr_type, vm_type);
+ struct expression *expr;
+
+ if (vm_type == J_CHAR || vm_type == J_BYTE ||
+ vm_type == J_SHORT || vm_type == J_BOOLEAN)
+ vm_type = J_INT;
+
+ expr = alloc_expression(expr_type, vm_type);
if (expr)
expr->target_method = target_method;
--
1.6.0.6
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