Closed Bug 695333 Opened 13 years ago Closed 13 years ago

negate of float4(0f) does not negate if run via interpreter

Categories

(Tamarin Graveyard :: Virtual Machine, defect)

Product:
Tamarin Graveyard
Component:
Virtual Machine
Platform:
x86
macOS
Type:
defect
Priority:
Not set
Severity:
normal

Tracking

(Not tracked)

Status:
VERIFIED FIXED

People

(Reporter: brbaker, Assigned: jodyer)

References

Details

The interpreter is not properly negating a float4(0f) but will properly negate a float4(-0f)

Code:

var flt4zero:float4 = new float4(0f);
print(1/flt4zero.x);
flt4zero = -flt4zero;
print(1/flt4zero.x);

var neg_flt4zero:float4 = new float4(-0f);
print(1/neg_flt4zero.x);
neg_flt4zero = -neg_flt4zero;
print(1/neg_flt4zero.x);

Output with -Dinterp:
   float4
   Infinity
   Infinity
   -Infinity
   Infinity

Expected Output and output when using -Ojit:
   float4
   Infinity
   -Infinity
   -Infinity
   Infinity


Testcase: as3/Types/Float4/flt4_5_1_3.as
Flags: in-testsuite+
Flags: flashplayer-triage+
Flags: flashplayer-qrb?
Flags: flashplayer-bug-
Fixed this, but it's now a bug in ASC (doesn't recognize the difference between float4(0f) and float4(-0f) )
Is there an asc bug entered for this? If not I will enter one.
Flags: flashplayer-qrb? → flashplayer-qrb+
nope; it's only in the latest ASC, I think.
Assignee: virgilp → jodyer
Fixed in asc-redux: changeset: 49:77ca9961472e
Status: ASSIGNED → RESOLVED
Closed: 13 years ago
Resolution: --- → FIXED
Status: RESOLVED → VERIFIED
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